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== Lesson 7 - Carbohydrates - Fuel For The Human Body ==

== Lesson 7 - Carbohydrates - Fuel For The Human Body ==

7.1. Introduction

'''[[The Immense Wisdom And Providence Of The Body|Back - Lesson 06]] - PDF pages 152-191 - [[Life Science Health System - T.C. Fry|Table of Contents]] - [[Proteins In The Diet|Next - Lesson 08]]'''

=== Introduction ===

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

=== Introduction - The Importance of Carbohydrates ===

Before embarking on a study of carbohydrates—their role in the body, their sources, etc., we will begin by highlighting the importance of carbohydrates, defining what carbohydrates are and learning how they are formed, as well as glimpsing at a brief history of carbohydrates in the human diet.

Before embarking on a study of carbohydrates—their role in the body, their sources, etc., we will begin by highlighting the importance of carbohydrates, defining what carbohydrates are and learning how they are formed, as well as glimpsing at a brief history of carbohydrates in the human diet.

Carbohydrates are made up of three elements: carbon, hydrogen and oxygen—carbohydrates. As you will learn in a later lesson, fats are also comprised of carbon, hydrogen and oxygen, but they have less oxygen and more carbon and hydrogen than carbohydrates.

Carbohydrates are made up of three elements: carbon, hydrogen and oxygen—carbohydrates. As you will learn in a later lesson, fats are also comprised of carbon, hydrogen and oxygen, but they have less oxygen and more carbon and hydrogen than carbohydrates.

Carbohydrates, along with proteins and fats, comprise the major components of liv- ing matter and are used for maintenance of cellular functional activities and as reserve

Carbohydrates, along with proteins and fats, comprise the major components of living matter and are used for maintenance of cellular functional activities and as reserve and structural materials for cells. Because they are the primary source of energy for the animal kingdom, carbohydrates are particularly important in a study of nutritional science.

 

and structural materials for cells. Because they are the primary source of energy for the animal kingdom, carbohydrates are particularly important in a study of nutritional science.

==== How Carbohydrates Are Formed ====

==== How Carbohydrates Are Formed ====

=== Classification Of Carbohydrates ===

=== Classification Of Carbohydrates ===

Carbohydrates, also known as saccharides, are classified according to the number of single carbohydrate molecules in each chemical structure. Carbohydrate compounds having just one carbohydrate molecule are called monosaccharides; compounds with two carbohydrate molecules are called disaccharides; and those compounds containing more than two carbohydrate molecules are named polysaccharides. All carbohydrates either are monosaccharides or can be hydrolyzed (broken down) into two or more monosaccharides.

Carbohydrates, also known as saccharides, are classified according to the number of single carbohydrate molecules in each chemical structure. Carbohydrate compounds having just one carbohydrate molecule are called monosaccharides; compounds with two carbohydrate molecules are called disaccharides; and those compounds containing more than two carbohydrate molecules are named polysaccharides. All carbohydrates either are monosaccharides or can be hydrolyzed(broken down) into two or more monosaccharides.

For further understanding of these different classifications of carbohydrates, the monosaccharides and disaccharides can be grouped together and compared with the polysaccharides. This can be done because monosaccharides and disaccharides have certain things in common.

For further understanding of these different classifications of carbohydrates, the monosaccharides and disaccharides can be grouped together and compared with the polysaccharides. This can be done because monosaccharides and disaccharides have certain things in common.

For one, they are both water soluble. In addition, they have a sweet taste and a crystalline structure. The monosaccharides and disaccharides are called sugars and all share the suffix, -ose, meaning sugar.

For one, they are both water soluble. In addition, they have a sweet taste and a crystalline structure. The monosaccharides and disaccharides are called sugars and all share the suffix, -ose, meaning sugar.

Polysaccharides, in contrast to mono- and disaccharides, are insoluble in water, do not taste sweet and do not form crystals. Also, they do not share a suffix and have no group name (such as sugars, in the case of mono-arid disaccharides). They are sometimes called starches, but this is technically incorrect because there are many other classifications of polysaccharides besides starches (cellulose and glycogen being two and dextrin being another).

Polysaccharides, in contrast to mono and disaccharides, are insoluble in water, do not taste sweet and do not form crystals. Also, they do not share a suffix and have no group name (such as sugars, in the case of mono-arid disaccharides). They are sometimes called starches, but this is technically incorrect because there are many other classifications of polysaccharides besides starches (cellulose and glycogen being two and dextrin being another).

==== Monosaccharides ====

==== Monosaccharides ====

==== Glucose (also known as dextrose or grape sugar) ====

==== Glucose (also known as dextrose or grape sugar) ====

This monosaccharide is the most important carbohydrate in human nutrition because it is the one that the body fuses directly to supply its energy needs. Glucose is formed from the hydrolysis of di- and polysaccharides, including starch, dextrin, maltose, sucrose and lactose; from the monosaccharide fructose largely during absorption; and from both fructose and galactose in the liver during metabolism.

This monosaccharide is the most important carbohydrate in human nutrition because it is the one that the body fuses directly to supply its energy needs. Glucose is formed from the hydrolysis of di and polysaccharides, including starch, dextrin, maltose, sucrose and lactose; from the monosaccharide fructose largely during absorption; and from both fructose and galactose in the liver during metabolism.

Glucose is the carbohydrate found in the bloodstream, and it provides an immediate source of energy for the body’s cells and tissues. Glucose is also formed when stored body carbohydrate (glycogen) is broken down for use.

Glucose is the carbohydrate found in the bloodstream, and it provides an immediate source of energy for the body’s cells and tissues. Glucose is also formed when stored body carbohydrate(glycogen) is broken down for use.

In the plant world, glucose is widely distributed. It is found in all plants and in the sap of trees. Fruits and vegetables are wholesome food sources of glucose. It is also present in such unwholesome (to humans) substances as molasses, honey and corn syrup.

In the plant world, glucose is widely distributed. It is found in all plants and in the sap of trees. Fruits and vegetables are wholesome food sources of glucose. It is also present in such unwholesome (to humans) substances as molasses, honey and corn syrup.

==== Sucrose ====

==== Sucrose ====

The disaccharide, sucrose, consists of one molecule of each of two monosaccharides—glucose and fructose. Sucrose is found in fruits and vegetables and is particularly plentiful in sugar beets (roots) and sugarcane (a grass). Refined white and brown sugars are close to 100% sucrose because almost everything else (including the other kinds of sugars present, the vitamins, the minerals and the proteins) have been removed in the refining process. Maple syrup and molasses are, like refined sugars, unwholesome sweeteners; both contain over 50% sucrose. It almost goes without saying that any foods, so- called, containing significant amounts of refined sugar are high in sucrose.

The disaccharide, sucrose, consists of one molecule of each of two monosaccharides—glucose and fructose. Sucrose is found in fruits and vegetables and is particularly plentiful in sugar beets (roots) and sugarcane (a grass). Refined white and brown sugars are close to 100% sucrose because almost everything else (including the other kinds of sugars present, the vitamins, the minerals and the proteins) have been removed in the refining process. Maple syrup and molasses are, like refined sugars, unwholesome sweeteners; both contain over 50% sucrose. It almost goes without saying that any foods, so-called, containing significant amounts of refined sugar are high in sucrose.

==== Maltose (also known as malt sugar) ====

==== Maltose (also known as malt sugar) ====

Most starches are a mix of two different molecular structures, amylose and amylopectin. The former has a linear structure and the latter has a branched or bushy structure. The proportion of the two fractions varies according to the species of plant. For example, potato starch and most cereal starches have approximately 15-30% amylose. But the waxy cereal grains, including some varieties of corn plus rice and grain sorghum, have their starch most entirely as amylopectin. The starches in green peas and in some sweet corn varieties are mainly amylose.

Most starches are a mix of two different molecular structures, amylose and amylopectin. The former has a linear structure and the latter has a branched or bushy structure. The proportion of the two fractions varies according to the species of plant. For example, potato starch and most cereal starches have approximately 15-30% amylose. But the waxy cereal grains, including some varieties of corn plus rice and grain sorghum, have their starch most entirely as amylopectin. The starches in green peas and in some sweet corn varieties are mainly amylose.

The polysaccharides, as mentioned earlier, are not water soluble as are the mono- and disaccharides. Though not water soluble, starches can be dispersed in water heated to a certain temperature. The granules swell and gelatinize. When cooled, this gelatin sets to a paste. The jelling characteristics of starches are considered to result from the amylose present, while amylopectin is considered to be responsible for the gummy and cohesive properties of the paste.

The polysaccharides, as mentioned earlier, are not water soluble as are the mono and disaccharides. Though not water soluble, starches can be dispersed in water heated to a certain temperature. The granules swell and gelatinize. When cooled, this gelatin sets to a paste. The jelling characteristics of starches are considered to result from the amylose present, while amylopectin is considered to be responsible for the gummy and cohesive properties of the paste.

==== Dextrin ====

==== Dextrin ====

=== The Role Of Carbohydrates In The Body ===

=== The Role Of Carbohydrates In The Body ===

Five subheadings follow in this lesson subdivision, but there is actually only one ba- sic role of carbohydrates in the human diet: to supply energy. It should always be kept in mind that carbohydrates or calories alone cannot adequately supply our energy needs, for we must have our carbohydrates in combination with other needs, such as proteins, water, vitamins, minerals, fats, etc. This means that a diet of refined sugar, refined rice, flour products and other “food fragments,” though it supplies calories, cannot satisfac- torily comprise the bulk of anyone’s diet. A person on such a diet would suffer many problems, for the organism is not capable of living long or well on bare carbohydrates alone. They must be obtained in combination with the other essential food factors to be truly useful in the overall energy production and nutrition of the organism.

Five subheadings follow in this lesson subdivision, but there is actually only one basic role of carbohydrates in the human diet: to supply energy. It should always be kept in mind that carbohydrates or calories alone cannot adequately supply our energy needs, for we must have our carbohydrates in combination with other needs, such as proteins, water, vitamins, minerals, fats, etc. This means that a diet of refined sugar, refined rice, flour products and other “food fragments,” though it supplies calories, cannot satisfactorily comprise the bulk of anyone’s diet. A person on such a diet would suffer many problems, for the organism is not capable of living long or well on bare carbohydrates alone. They must be obtained in combination with the other essential food factors to be truly useful in the overall energy production and nutrition of the organism.

==== Carbohydrates Supply Energy ====

==== Carbohydrates Supply Energy ====

==== Carbohydrates Provide Fuel for the Muscular System ====

==== Carbohydrates Provide Fuel for the Muscular System ====

Carbohydrates provide the major fuel for muscular exercise. Fats and proteins can be used only indirectly—by first being converted into carbohydrates. For this reason, a proper diet should consist primarily of carbohydrates—not primarily of proteins and fats as are commonly consumed in conventional nonvegetarian (and some lacto- and lacto-ovo vegetarian) diets.

Carbohydrates provide the major fuel for muscular exercise. Fats and proteins can be used only indirectly—by first being converted into carbohydrates. For this reason, a proper diet should consist primarily of carbohydrates—not primarily of proteins and fats as are commonly consumed in conventional nonvegetarian (and some lacto and lacto-ovo vegetarian) diets.

The muscles use the glycogen present in the muscle cells and glucose in the blood stream. However, glycogen from the muscles is more efficiently used than glucose because the breakdown of glycogen for use does not require energy input at the time, whereas a certain amount of energy is used to bring the blood sugar into the metabolic system of the muscles. (It does require energy to build up the glycogen supply in the first place, but this happens during periods of rest when plenty of energy is available.)

The muscles use the glycogen present in the muscle cells and glucose in the blood stream. However, glycogen from the muscles is more efficiently used than glucose because the breakdown of glycogen for use does not require energy input at the time, whereas a certain amount of energy is used to bring the blood sugar into the metabolic system of the muscles. (It does require energy to build up the glycogen supply in the first place, but this happens during periods of rest when plenty of energy is available.)

If a diet high in carbohydrates is not consumed, tremendous muscular exertion over long periods and/or extreme and prolonged stress (as being stranded for weeks in Antarctica) can result in accelerated breakdown of body protein and stored body fat. The protein breakdown is evidenced by an increased excretion of nitrogen in the urine, and the fat breakdown is evidenced by a rise in the level of ketone bodies in the urine and in the blood. The blood sugar level is simultaneously lower.

If a diet high in carbohydrates is not consumed, tremendous muscular exertion over long periods and/or extreme and prolonged stress (as being stranded for weeks in Antarctica) can result in accelerated breakdown of body protein and stored body fat. The protein breakdown is evidenced by an increased excretion of nitrogen in the urine, and the fat breakdown is evidenced by a rise in the level of ketone bodies in the urine and in the blood. The blood sugar level is simultaneously lower.

The body works much more efficiently from carbohydrate intake than from broken- down body protein and fats because protein and fat molecules, when used as fuel, yield less than their total caloric value in the form the muscles can use. The remaining portion is used for the conversion of these molecules into suitable fuel. This conversion takes place in the liver and adipose tissue, which supply the body’s organs with fuel via the bloodstream.

The body works much more efficiently from carbohydrate intake than from broken down body protein and fats because protein and fat molecules, when used as fuel, yield less than their total caloric value in the form the muscles can use. The remaining portion is used for the conversion of these molecules into suitable fuel. This conversion takes place in the liver and adipose tissue, which supply the body’s organs with fuel via the bloodstream.

The fact that the body can and will use body fats and proteins when the supply and stores of blood sugar and glycogen are not great enough to meet the demand for energy exemplifies two facts: 1) The organism is provident. It has many back-up arrangements for survival in emergency situations when sufficient carbohydrates are not available. 2) An appropriate balance between supplying body needs (such as rest and carbohydrates) and expending energy (muscular, nervous or other) should be strived for to attain optimum health and well-being.

The fact that the body can and will use body fats and proteins when the supply and stores of blood sugar and glycogen are not great enough to meet the demand for energy exemplifies two facts: 1) The organism is provident. It has many back-up arrangements for survival in emergency situations when sufficient carbohydrates are not available. 2) An appropriate balance between supplying body needs (such as rest and carbohydrates) and expending energy (muscular, nervous or other) should be strived for to attain optimum health and well-being.

Physiology textbooks refer to this so-called role or function of carbohydrate in the body as “its protein-sparing action.” However, it is incorrect to attribute action (other than chemical action) to carbohydrates or other inanimate substances. Besides, “sparing protein” is not a function or role of carbohydrates at all. Carbohydrates simply furnish our fuel or energy needs—and nothing more.

Physiology textbooks refer to this so-called role or function of carbohydrate in the body as “its protein-sparing action.” However, it is incorrect to attribute action (other than chemical action) to carbohydrates or other inanimate substances. Besides, “sparing protein” is not a function or role of carbohydrates at all. Carbohydrates simply furnish our fuel or energy needs—and nothing more.

What is being said in the textbooks is that proteins consumed will be used for tissue building and maintenance rather than being used as an emergency source of energy as long as the carbohydrate intake is sufficient. This is true, but it is only another way of saying that carbohydrates are the primary and most efficient source of energy or fuel and

What is being said in the textbooks is that proteins consumed will be used for tissue building and maintenance rather than being used as an emergency source of energy as long as the carbohydrate intake is sufficient. This is true, but it is only another way of saying that carbohydrates are the primary and most efficient source of energy or fuel and that it is best not to try to meet our fuel needs from proteins. It is stating the true fact that carbohydrates, not proteins, supply our primary nutrient needs.

 

that it is best not to try to meet our fuel needs from proteins. It is stating the true fact that carbohydrates, not proteins, supply our primary nutrient needs.

“Sparing proteins” is not a separate and distinct function or role of carbohydrates any more than preventing scurvy is a separate and distinct function of vitamin C in the body. Vitamin C supplies body needs, but its role is not prevention of scurvy or of anything else. Viewing nutrients as preventative agents of diseases is another way of saying that diseases are normal, that they are an inevitable part of life that will and must occur unless prevented by the proper nutrients. That is a backwards way of viewing health—it’s the disease approach, or the medical approach. Just as good things happen to us if we think positive thoughts and visualize success, harmony, etc., good health will exist as long as we live healthfully—and that includes consuming the correct amounts of the foods to which we were biologically adapted in nature to eat.

“Sparing proteins” is not a separate and distinct function or role of carbohydrates any more than preventing scurvy is a separate and distinct function of vitamin C in the body. Vitamin C supplies body needs, but its role is not prevention of scurvy or of anything else. Viewing nutrients as preventative agents of diseases is another way of saying that diseases are normal, that they are an inevitable part of life that will and must occur unless prevented by the proper nutrients. That is a backwards way of viewing health—it’s the disease approach, or the medical approach. Just as good things happen to us if we think positive thoughts and visualize success, harmony, etc., good health will exist as long as we live healthfully—and that includes consuming the correct amounts of the foods to which we were biologically adapted in nature to eat.

Processed, highly-refined, so-called foods (they do contain carbohydrates) do not deserve the label foods because they are not whole foods. Parts of processed foods are missing—they were removed intentionally in the refining process. (Fiber [cellulose] is one of those missing parts.) This makes them incomplete or fragmented foods. Eating fragmented foods results in problems in the body. Therefore, they should not be eaten.

Processed, highly-refined, so-called foods (they do contain carbohydrates) do not deserve the label foods because they are not whole foods. Parts of processed foods are missing—they were removed intentionally in the refining process. (Fiber [cellulose] is one of those missing parts.) This makes them incomplete or fragmented foods. Eating fragmented foods results in problems in the body. Therefore, they should not be eaten.

Refined sugar and products containing refined sugar, as well as refined flour products, are the most salient examples of processed food fragments that produce toxic effects in the body. Being devoid of vitamins and minerals in their natural form (the only

Refined sugar and products containing refined sugar, as well as refined flour products, are the most salient examples of processed food fragments that produce toxic effects in the body. Being devoid of vitamins and minerals in their natural form (the only form they can be used in), these products are like drugs within the body. In addition, calcium and other minerals, as well as B vitamins, must be utilized by the body to metabolize refined products. Because the refined products are devoid of nutrients except carbohydrates, calcium is taken from the bones.

 

form they can be used in), these products are like drugs within the body. In addition, calcium and other minerals, as well as B vitamins, must be utilized by the body to metabolize refined products. Because the refined products are devoid of nutrients except carbohydrates, calcium is taken from the bones.

Most “civilized” diets contain cooked foods, foods not normal to humans, refined and processed foods and drugs and medications. Refined sugar, flours, white rice and processed cereals are some of the worst culprits, but there are many, many more sources of toxins in the diet. Also, incompatible food combinations result in the production of toxins in the stomach and elsewhere in the digestive tract, and these toxins also contribute to gastrointestinal disturbances and diseases.

Most “civilized” diets contain cooked foods, foods not normal to humans, refined and processed foods and drugs and medications. Refined sugar, flours, white rice and processed cereals are some of the worst culprits, but there are many, many more sources of toxins in the diet. Also, incompatible food combinations result in the production of toxins in the stomach and elsewhere in the digestive tract, and these toxins also contribute to gastrointestinal disturbances and diseases.

Much more could be said about the sources of toxins within the body that result in disease, but this has been discussed in previous lessons and will also be further discussed in future lessons. For now, it is sufficient for us to explain that low-fiber diets not only lack the natural cellulose which should be left intact in the whole food, but they also contain or give rise to a host of toxins that result in disease conditions. It is not the lack of fiber itself that causes diverticulosis and other gastrointestinal problems but the over- all unwholesomeness of the foods ingested in so-called civilized society. (Of course, you should understand that what is eaten is only part of the picture and that how it’s eaten, how much is eaten, the amount of exercise, sleep, fresh air, etc., indulged are also important factors in human nutrition.)

Much more could be said about the sources of toxins within the body that result in disease, but this has been discussed in previous lessons and will also be further discussed in future lessons. For now, it is sufficient for us to explain that low-fiber diets not only lack the natural cellulose which should be left intact in the whole food, but they also contain or give rise to a host of toxins that result in disease conditions. It is not the lack of fiber itself that causes diverticulosis and other gastrointestinal problems but the overall unwholesomeness of the foods ingested in so-called civilized society. (Of course, you should understand that what is eaten is only part of the picture and that how it’s eaten, how much is eaten, the amount of exercise, sleep, fresh air, etc., indulged are also important factors in human nutrition.)

=== How Carbohydrates Are Digested And Used By The Body ===

=== How Carbohydrates Are Digested And Used By The Body ===

Before discussing carbohydrate digestion in particular, let’s give a little attention to digestion in general. Complete and thorough digestion of foodstuffs is extremely important for good health. A tremendous amount of toxin elimination and accumulation puts a great stress and burden upon the organism and results in a large variety and number of diseases. This happens both directly, from the presence of accumulated toxic substances that the body was unable to eliminate, and indirectly, from a decrease in the body’s digestive capabilities due to overworking the digestive system and depleting the body’s supply of vital energy.

Before discussing carbohydrate digestion in particular, let’s give a little attention to digestion in general. Complete and thorough digestion of foodstuffs is extremely important for good health. A tremendous amount of toxin elimination and accumulation puts a great stress and burden upon the organism and results in a large variety and number of diseases. This happens both directly, from the presence of accumulated toxic substances that the body was unable to eliminate, and indirectly, from a decrease in the body’s digestive capabilities due to overworking the digestive system and depleting the body’s supply of vital energy.

It is, therefore, important for us to do everything we can to insure thorough and complete digestion of all foods eaten. This can be done by eating primarily (or only) easily digested and uncomplicated foods such as fruits; by eating compatible combinations of foods; by eating moderate amounts of foods; by eating at well-spaced meals; by abstain- ing from drinks during or too soon before or after meals; and by refraining from eating while under stress or emotionally upset.

It is, therefore, important for us to do everything we can to insure thorough and complete digestion of all foods eaten. This can be done by eating primarily (or only) easily digested and uncomplicated foods such as fruits; by eating compatible combinations of foods; by eating moderate amounts of foods; by eating at well-spaced meals; by abstaining from drinks during or too soon before or after meals; and by refraining from eating while under stress or emotionally upset.

One of two things happens to foods that do not get thoroughly or completely digested:  

One of two things happens to foods that do not get thoroughly or completely digested:  

From the above, you can see why thorough mastication of food is so important when starches are eaten. No one who seeks health should eat starches in a hurry, nor should they have them with a beverage or with proteins or acids, for good digestion of foods is imperative for good health.

From the above, you can see why thorough mastication of food is so important when starches are eaten. No one who seeks health should eat starches in a hurry, nor should they have them with a beverage or with proteins or acids, for good digestion of foods is imperative for good health.

A special note should be made here about glycogen—animal starch. Glycogen should not be consumed by health seekers because much disease results from the ingestion of animal flesh and animal products. This will be discussed in depth in later lessons. For the purposes of this lesson, suffice it to say that glycogen ingested cannot be digest- ed in the stomach because, of the hydrochloric acid that will be secreted to digest the protein, which is the primary nutritive component of foods that contain glycogen. Therefore, whatever glycogen that is not converted to a disaccharide by the salivary amylase, ptyalin, must be converted in the intestine. The likelihood of the glycogen reaching the intestine without fermenting before it can get there is small. This is just one of the many hazards of consuming animal flesh and animal foods.

A special note should be made here about glycogen—animal starch. Glycogen should not be consumed by health seekers because much disease results from the ingestion of animal flesh and animal products. This will be discussed in depth in later lessons. For the purposes of this lesson, suffice it to say that glycogen ingested cannot be digested in the stomach because, of the hydrochloric acid that will be secreted to digest the protein, which is the primary nutritive component of foods that contain glycogen. Therefore, whatever glycogen that is not converted to a disaccharide by the salivary amylase, ptyalin, must be converted in the intestine. The likelihood of the glycogen reaching the intestine without fermenting before it can get there is small. This is just one of the many hazards of consuming animal flesh and animal foods.

==== Starch Digestion in the Intestine ====

==== Starch Digestion in the Intestine ====

Even though some substances (water, ethyl alcohol, small amounts of monosaccharides) may be absorbed into the bloodstream through the mucosa (mucous membrane) of the stomach, most absorption of the soluble products of digestion occurs in the small intestine. There the absorptive surface is increased about 600 times by villi, which are fingerlike projections in the lining of the small intestine. Each individual villus contains a network of capillaries surrounding a lymph vessel, and each cell on the surface of the villus is made up of smaller units called brush border cells or micro villi.

Even though some substances (water, ethyl alcohol, small amounts of monosaccharides) may be absorbed into the bloodstream through the mucosa (mucous membrane) of the stomach, most absorption of the soluble products of digestion occurs in the small intestine. There the absorptive surface is increased about 600 times by villi, which are fingerlike projections in the lining of the small intestine. Each individual villus contains a network of capillaries surrounding a lymph vessel, and each cell on the surface of the villus is made up of smaller units called brush border cells or micro villi.

Substances or nutrients pass through the intestinal membrane through the process of osmosis in one of two ways: 1) diffusion or 2) active transport. Substances and nutrients in the intestinal tract that are in higher concentration than across the membrane in the

Substances or nutrients pass through the intestinal membrane through the process of osmosis in one of two ways: 1) diffusion or 2) active transport. Substances and nutrients in the intestinal tract that are in higher concentration than across the membrane in the blood and lymph pass through by diffusion. This is a simple osmotic process in which no energy has to be expended. Fructose is absorbed by diffusion.

Active transport is the osmotic process used when substances or nutrients are absorbed from an area of lower concentration across a membrane to an area of higher concentration. This process requires energy for the absorption, as well as a “carrier” to transport the substance. The carrier substance is thought to be a protein or lipoprotein (a combination of a protein and a fat). Glucose and galactose are absorbed into the bloodstream by active transport. Monosaccharides are absorbed by the capillaries, which empty into the portal vein, which in turn carries them directly to the liver.

 

Active transport is the osmotic process used when substances or nutrients are ab- sorbed from an area of lower concentration across a membrane to an area of higher concentration. This process requires energy for the absorption, as well as a “carrier” to trans- port the substance. The carrier substance is thought to be a protein or lipoprotein (a combination of a protein and a fat). Glucose and galactose are absorbed into the bloodstream by active transport. Monosaccharides are absorbed by the capillaries, which empty into the portal vein, which in turn carries them directly to the liver.

==== Carbohydrate Metabolism ====

==== Carbohydrate Metabolism ====

The body’s immediate needs determine whether carbohydrates that have been digested and absorbed are used for immediate energy, converted and stored as glycogen or changed to fat and stored in adipose tissue.

The body’s immediate needs determine whether carbohydrates that have been digested and absorbed are used for immediate energy, converted and stored as glycogen or changed to fat and stored in adipose tissue.

Glucose is the principal sugar used by body cells and tissues. It is, therefore, important to know the sources of this nutrient. It may come from carbohydrates or from non- carbohydrate sources. Following are the four primary sources of glucose:

Glucose is the principal sugar used by body cells and tissues. It is, therefore, important to know the sources of this nutrient. It may come from carbohydrates or from non-carbohydrate sources. Following are the four primary sources of glucose:

1. From the digestion of dietary carbohydrate. Glucose is formed from the digestion of starch, dextrin, maltose, sucrose and lactose from the foods we eat.

1. From the digestion of dietary carbohydrate. Glucose is formed from the digestion of starch, dextrin, maltose, sucrose and lactose from the foods we eat.

Not only are fats converted to carbohydrates for energy when carbohydrate intake is inadequate, but when carbohydrates are consumed beyond need, the excess is converted to fat and stored in adipose tissue. Also, the B-complex vitamins and the mineral calcium are known to play an integral part in carbohydrate metabolism.

Not only are fats converted to carbohydrates for energy when carbohydrate intake is inadequate, but when carbohydrates are consumed beyond need, the excess is converted to fat and stored in adipose tissue. Also, the B-complex vitamins and the mineral calcium are known to play an integral part in carbohydrate metabolism.

1. Thetransformationofcarbohydrateintofat.Fatsandcarbohydrateseateninexcessof caloric expenditure are deposited in the adipose tissues as fat. It is, therefore, incorrect to label carbohydrates as being “fattening.” Fats eaten in excess of caloric need are also stored as fat. In the diets of many people, however, carbohydrates comprise the foodstuffs most commonly eaten in excess. There are many reasons for this. One reason is because refined sugar and flour are used so heavily and widely in the processing of the foods most widely advertised and distributed to the retail food outlets. Carbohydrates are, as a general rule, less expensive than fat-containing foods (such as cheeses, nuts,

===== The transformation of carbohydrate into fat. =====

Fats and carbohydrates eaten in excess of caloric expenditure are deposited in the adipose tissues as fat. It is, therefore, incorrect to label carbohydrates as being “fattening.” Fats eaten in excess of caloric need are also stored as fat. In the diets of many people, however, carbohydrates comprise the foodstuffs most commonly eaten in excess. There are many reasons for this. One reason is because refined sugar and flour are used so heavily and widely in the processing of the foods most widely advertised and distributed to the retail food outlets. Carbohydrates are, as a general rule, less expensive than fat-containing foods (such as cheeses, nuts, many meats, etc.) therefore, they are more likely to be overeaten. In addition, because humans naturally “have a sweet tooth” (because we are biologically frugivores, adapted in nature to eat fruits), we are more attracted to carbohydrates than to fats. The chemical pathway glucose follows on its way to fat is well understood. You may study this in a good physiology text.

===== The vitamin B complex in carbohydrate nutrition. =====

 

The importance of the B vitamins in carbohydrate metabolism was discovered because of the health problems that resulted from the industrial processing of foods which removed (and still removes today) the B vitamins from their whole food sources where they were packaged by nature side-by-side with carbohydrates. The large-scale introduction of white (refined) rice in the Orient resulted in beriberi, a vitamin B complex deficiency—specifically, a thiamine deficiency. This phenomenon led to the recognition of the existence of this group of vitamins.

2. The vitamin B complex in carbohydrate nutrition.The importance of the B vitamins in carbohydrate metabolism was discovered because of the health problems that resulted from the industrial processing of foods which removed (and still removes today) the B vitamins from their whole food sources where they were packaged by nature side-by-side with carbohydrates. The large-scale introduction of white (refined) rice in the Orient resulted in beriberi, a vitamin B complex deficiency—specifically, a thiamine deficiency. This phenomenon led to the recognition of the existence of this group of vitamins.

Prior to the widespread processing of foods, humans did not suffer as a result of their lack of knowledge about the existence of the B vitamins because in nature there is a union between the vitamin B complex and carbohydrates in foods. This union was broken by the industrial processing of foods.

Prior to the widespread processing of foods, humans did not suffer as a result of their lack of knowledge about the existence of the B vitamins because in nature there is a union between the vitamin B complex and carbohydrates in foods. This union was broken by the industrial processing of foods.

Please make special note of the above, for it is one of the most important facts you need to completely understand and accept if you are to bring yourself and your clients to a high level of well-being.

Please make special note of the above, for it is one of the most important facts you need to completely understand and accept if you are to bring yourself and your clients to a high level of well-being.

3. Calcium in carbohydrate metabolism. Like the B-complex vitamins, calcium is essential in the metabolism of carbohydrates. When calcium is present in context with the carbo- hydrate source (whole foods), there are no problems. But, with today’s high consumption of refined foods, lack of natural calcium in these foods creates a myriad of very serious health problems. Refined sugar and flour, as well as rice, breads, packaged cereals and pastas, have been robbed of the calcium in the plant during processing and refining. Even whole-grain products may completely lack calcium because of the destruction of this mineral during the destructive processes of cooking and baking.

===== Calcium in carbohydrate metabolism. =====

Like the B-complex vitamins, calcium is essential in the metabolism of carbohydrates. When calcium is present in context with the carbohydrate source (whole foods), there are no problems. But, with today’s high consumption of refined foods, lack of natural calcium in these foods creates a myriad of very serious health problems. Refined sugar and flour, as well as rice, breads, packaged cereals and pastas, have been robbed of the calcium in the plant during processing and refining. Even whole-grain products may completely lack calcium because of the destruction of this mineral during the destructive processes of cooking and baking.

Calcium is taken from the bones and teeth to meet the needs for this important mineral in carbohydrate metabolism. Dental caries, osteoporosis and other bone diseases result.

Calcium is taken from the bones and teeth to meet the needs for this important mineral in carbohydrate metabolism. Dental caries, osteoporosis and other bone diseases result.

As mentioned earlier in this lesson, carbohydrates, along with proteins and fats, form the major components of living matter. They maintain the functional activity of the cells and serve as structural and reserve materials. Carbohydrates provide the primary source of energy for humans.

As mentioned earlier in this lesson, carbohydrates, along with proteins and fats, form the major components of living matter. They maintain the functional activity of the cells and serve as structural and reserve materials. Carbohydrates provide the primary source of energy for humans.

There is not a single living thing—plant or animal—that does not contain carbohy- drates in some form. Though the quantity and form of carbohydrates varies, the presence of carbohydrates as an integral component of life is constant. This means that all foods are potential sources of carbohydrates. However, some foods are better sources than oth- ers, and this is what we will discuss now.

There is not a single living thing—plant or animal—that does not contain carbohydrates in some form. Though the quantity and form of carbohydrates varies, the presence of carbohydrates as an integral component of life is constant. This means that all foods are potential sources of carbohydrates. However, some foods are better sources than others, and this is what we will discuss now.

==== Carbohydrates Are a Primary Component of Some Foods ====

==== Carbohydrates Are a Primary Component of Some Foods ====

Because some non-sweet foods such as nuts, bell peppers, squashes, cucumbers and tomatoes are technically fruits, fruits can be divided into two classifications: 1) sweet fruits and 2) non-sweet fruits. In our discussion of carbohydrates, we will limit our discussion primarily to the sweet fruits, even though the non-sweet fruits do contain some sugar.

Because some non-sweet foods such as nuts, bell peppers, squashes, cucumbers and tomatoes are technically fruits, fruits can be divided into two classifications: 1) sweet fruits and 2) non-sweet fruits. In our discussion of carbohydrates, we will limit our discussion primarily to the sweet fruits, even though the non-sweet fruits do contain some sugar.

For purposes of food combining for digestive compatibility, the sweet fruits can be divided into four groups: 1) sweet fruits, 2) subacid fruits, 3) acid fruits and 4) melons. The fruits in each category and how to combine them for best digestion will be discussed in a future lesson on correct food combining.

For purposes of food combining for digestive compatibility, the sweet fruits can be divided into four groups:  

7.6.2 There Is a Greater Tendency to Overeat on Starches

The fruits in each category and how to combine them for best digestion will be discussed in a future lesson on correct food combining.

 

7.6.3 Many Digestive Steps Take Longer and Fermentation Can More Readily Occur

 

 

 

 

 

There are many reasons why starches are less than ideal as sources of carbohydrates for humans.

There are many reasons why starches are less than ideal as sources of carbohydrates for humans.

A later lesson will discuss in depth which foods are acid-forming and which are alkaline-forming and why we should have a predominance of alkaline-forming foods in our diet. Suffice it to say here that most grains and legumes are acid-forming and, for this reason, should be eaten in extreme moderation, if at all.

A later lesson will discuss in depth which foods are acid-forming and which are alkaline-forming and why we should have a predominance of alkaline-forming foods in our diet. Suffice it to say here that most grains and legumes are acid-forming and, for this reason, should be eaten in extreme moderation, if at all.

Grains contain phytic acid, a substance which binds calcium and iron, both in the grains themselves and the body stores of these minerals. This fact only complicates and aggravates the problem of calcium being taken from the bones and teeth by the body in the metabolism of carbohydrates that have been refined and their minerals, therefore, re- moved.

Grains contain phytic acid, a substance which binds calcium and iron, both in the grains themselves and the body stores of these minerals. This fact only complicates and aggravates the problem of calcium being taken from the bones and teeth by the body in the metabolism of carbohydrates that have been refined and their minerals, therefore, removed.

Anyone concerned about getting enough calcium should not eat grains. People who suffer with nervousness, sleeplessness and/or cramps may already be experiencing some of the symptoms of calcium deficiency. Getting carbohydrates from fresh fruits, and consuming dark green leafy vegetables, possibly along with a few occasional nuts, seeds and/or avocado's, will insure adequate intake of usable calcium. Consuming grains in addition to the wholesome foods mentioned above is defeating of your purpose and is to be discouraged.

Anyone concerned about getting enough calcium should not eat grains. People who suffer with nervousness, sleeplessness and/or cramps may already be experiencing some of the symptoms of calcium deficiency. Getting carbohydrates from fresh fruits, and consuming dark green leafy vegetables, possibly along with a few occasional nuts, seeds and/or avocado's, will insure adequate intake of usable calcium. Consuming grains in addition to the wholesome foods mentioned above is defeating of your purpose and is to be discouraged.

When most people think about amounts of carbohydrates to consume, they think in terms of calories—units for measuring heat. One calorie is the amount of heat required to raise the temperature of one kilogram of water one degree Centigrade. The amount of heat liberated by a complete breakdown of a food into its metabolic end products is expressed in calories.

When most people think about amounts of carbohydrates to consume, they think in terms of calories—units for measuring heat. One calorie is the amount of heat required to raise the temperature of one kilogram of water one degree Centigrade. The amount of heat liberated by a complete breakdown of a food into its metabolic end products is expressed in calories.

For purposes of this course, however, calories are unimportant. Obtaining them is important, but numbers are not. Texts say that an average person needs a minimum of 1800 calories per day for just existing and more for any activities indulged. But, as mentioned in an earlier lesson, the variance is so great when it comes to individual needs, and people on conventional high-protein diets that include meat, etc., require so much extra energy to handle the constant input of toxins, causing an additional variance be- tween “norms” and the actual needs of a truly healthy person, that the guidelines in the texts are practically useless. Besides, humans have always been able to get all the calories they need without counting them—and without even knowing about their existence.

For purposes of this course, however, calories are unimportant. Obtaining them is important, but numbers are not. Texts say that an average person needs a minimum of 1800 calories per day for just existing and more for any activities indulged. But, as mentioned in an earlier lesson, the variance is so great when it comes to individual needs, and people on conventional high-protein diets that include meat, etc., require so much extra energy to handle the constant input of toxins, causing an additional variance between “norms” and the actual needs of a truly healthy person, that the guidelines in the texts are practically useless. Besides, humans have always been able to get all the calories they need without counting them—and without even knowing about their existence.

So, in this section, we will take a more practical approach to the question of how much carbohydrate we need in our diet.

So, in this section, we will take a more practical approach to the question of how much carbohydrate we need in our diet.

=== Disease Conditions Related To Carbohydrate Consumption ===

=== Disease Conditions Related To Carbohydrate Consumption ===

The following plus many more diseases are considered, by the medical world and by some lay people alike, to be either caused by or related to carbohydrates of various kinds in the diet. At this place in this course, we will not delve into any depth on these disease conditions, as they will be treated in separate later lessons. Here we will just briefly mention a few of the more common conditions related to carbohydrate consumption.

 

 

 

 

 

The following plus many more diseases are considered, by the medical world and by some lay people alike, to be either caused by or related to carbohydrates of various kinds in the diet. At this place in this course, we will not delve into any depth on these dis- ease conditions, as they will be treated in separate later lessons. Here we will just briefly mention a few of the more common conditions related to carbohydrate consumption.

==== Lactose Intolerance ====

==== Lactose Intolerance ====

Humans, like the other mammals, provide milk for their young from their mammary glands. This milk is perfectly suited for the very specific needs of the developing human infant, but it is not designed to meet the needs of calves or kids or other baby mammals. It is meant for feeding human infants only. While the above statement may seem ridiculously obvious, it is not as obvious to many people that human babies should not receive milk from cows or goats except in emergencies where human milk is simply unavailable. In those exceptions, milk from another species of mammal is preferable to no milk at all.

Humans, like the other mammals, provide milk for their young from their mammary glands. This milk is perfectly suited for the very specific needs of the developing human infant, but it is not designed to meet the needs of calves or kids or other baby mammals. It is meant for feeding human infants only. While the above statement may seem ridiculously obvious, it is not as obvious to many people that human babies should not receive milk from cows or goats except in emergencies where human milk is simply unavailable. In those exceptions, milk from another species of mammal is preferable to no milk at all.

The reason we introduce the subject of lactose intolerance the way we did in the above paragraph is to show two things: 1) how far we have strayed from nature in feeding cows’ milk to our human babies and 2) that mammary milk is specially created for babies up to three years of age and is not designed for humans above that age.

The reason we introduce the subject of lactose intolerance the way we did in the above paragraph is to show two things:  

 

# '''How far we have strayed from nature in feeding cows’ milk to our human babies.'''

# '''That mammary milk is specially created for babies up to three years of age and is not designed for humans above that age.'''

The idea that we need calcium, fats, proteins or anything else from milk beyond the age of three is not only entirely false and totally ungrounded in fact, but it has caused a tremendous amount of harm and suffering for humans. “How did these ideas get started and popularized so widely, then?” you may ask. The simple but sad answer is that the, dairy industry is primarily responsible. (This entire subject will be treated in greater depth in a future lesson devoted entirely to the subject of milk and dairy products in the diet.) As incredible as it may seem that so many people would actually put profit before human health, it is, nonetheless, true.

The idea that we need calcium, fats, proteins or anything else from milk beyond the age of three is not only entirely false and totally ungrounded in fact, but it has caused a tremendous amount of harm and suffering for humans. “How did these ideas get started and popularized so widely, then?” you may ask. The simple but sad answer is that the, dairy industry is primarily responsible. (This entire subject will be treated in greater depth in a future lesson devoted entirely to the subject of milk and dairy products in the diet.) As incredible as it may seem that so many people would actually put profit before human health, it is, nonetheless, true.

Galactosemia is another disease condition related to milk, or lactose, consumption. This disorder, labeled “an unusual hereditary disorder,” occurs in infants. Galactosemia is among the diseases that supposedly result from “inborn errors of metabolism.” In this condition, a specific enzyme (p-galactose-uridyl-transferase) is lacking, so the infant cannot properly digest the sugars in milk. Specifically, the monosaccharide galactose, which does not occur free in nature but results from the hydrolization of lactose from milk, cannot be converted to glucose.

Galactosemia is another disease condition related to milk, or lactose, consumption. This disorder, labeled “an unusual hereditary disorder,” occurs in infants. Galactosemia is among the diseases that supposedly result from “inborn errors of metabolism.” In this condition, a specific enzyme (p-galactose-uridyl-transferase) is lacking, so the infant cannot properly digest the sugars in milk. Specifically, the monosaccharide galactose, which does not occur free in nature but results from the hydrolization of lactose from milk, cannot be converted to glucose.

Infants with this disorder vomit when they’re fed milk and other dairy foods. They become lethargic and fail to gain weight. Their liver and spleen become enlarged (from overwork), cataracts develop and they become mentally retarded. In severe cases, death can occur. The solution to this problem is a milk- (and other dairy products) free diet, according to the texts. What is fed to babies instead of milk is not listed, but we would recommend freshly-made fruit juices in season, perhaps along with (at separate feedings, of course) homemade nut, seed or soy milk, depending upon the infant’s tolerance to these. (The subject of care and feeding of infants and children will be treated in more depth in later lessons.)

Infants with this disorder vomit when they’re fed milk and other dairy foods. They become lethargic and fail to gain weight. Their liver and spleen become enlarged (from overwork), cataracts develop and they become mentally retarded. In severe cases, death can occur. The solution to this problem is a milk(and other dairy products) free diet, according to the texts. What is fed to babies instead of milk is not listed, but we would recommend freshly-made fruit juices in season, perhaps along with (at separate feedings, of course) homemade nut, seed or soy milk, depending upon the infant’s tolerance to these. (The subject of care and feeding of infants and children will be treated in more depth in later lessons.)

==== Dental Caries ====

==== Dental Caries ====

Meats and dairy foods, as well as whole grains, are acid-forming in the body. Calcium is needed to neutralize the acidity and maintain the normal blood alkalinity of 7.40 pH. After the calcium available in the body is used up, this mineral is taken from the bones and teeth.

Meats and dairy foods, as well as whole grains, are acid-forming in the body. Calcium is needed to neutralize the acidity and maintain the normal blood alkalinity of 7.40 pH. After the calcium available in the body is used up, this mineral is taken from the bones and teeth.

As you can see, fruits are to be preferred over grains, meats, milk or dairy foods as sources of carbohydrates. Their sugars will not cause cavities, but fragmented foods (refined products) and unnatural foods (meats, milk, dairy, grains) will! From the stand- point of maintaining body calcium, the best choices of starch foods would be the tubers—potatoes, sweet potatoes, yams, and carrots.

As you can see, fruits are to be preferred over grains, meats, milk or dairy foods as sources of carbohydrates. Their sugars will not cause cavities, but fragmented foods (refined products) and unnatural foods (meats, milk, dairy, grains) will! From the standpoint of maintaining body calcium, the best choices of starch foods would be the tubers—potatoes, sweet potatoes, yams, and carrots.

No one ever need fear dental decay, even on a diet of sweet fruits. The important factor here is not to eat processed or refined foods or foods that are not suited to our biological adaptations. (The subject of sugar and other sweeteners will be treated in greater depth in a future lesson.)

No one ever need fear dental decay, even on a diet of sweet fruits. The important factor here is not to eat processed or refined foods or foods that are not suited to our biological adaptations. (The subject of sugar and other sweeteners will be treated in greater depth in a future lesson.)

=== Questions & Answers ===

=== Questions & Answers ===

The discrepancy exists because our protein need has been overemphasized and our carbohydrate need underemphasized. In the field of nutrition, as in other fields, fads come and go. The excessive concern about obtaining adequate protein has so permeated the minds of most people that it has become a very dangerous preoccupation. It is dangerous because too much protein in the diet is very harmful and is the cause of much of the disease and suffering so many people are experiencing.

The discrepancy exists because our protein need has been overemphasized and our carbohydrate need underemphasized. In the field of nutrition, as in other fields, fads come and go. The excessive concern about obtaining adequate protein has so permeated the minds of most people that it has become a very dangerous preoccupation. It is dangerous because too much protein in the diet is very harmful and is the cause of much of the disease and suffering so many people are experiencing.

=== Why has our need for protein become so exaggerated? Why is our need for carbohydrates underestimated? ===

'''Why has our need for protein become so exaggerated? Why is our need for carbohydrates underestimated?'''

The meat and dairy industries, with the support of the government, are largely responsible for the “protein fashion.” Their message has become a part of the public education systems—its textbooks, its universities, everything it teaches. They want us to believe that those foods which are most unhealthful, foods such as meat, fish, eggs, milk and cheese, are the most important part of our diet. Secondarily, carbo- hydrates from grains and breads are promoted—this mostly for the benefit of the refining and baking concerns that bring us Wonder Bread, Cheerios, Pop Tarts, etc. Fruits and vegetables are given very low priority, as the money to be made from marketing these foods is much less than from the nonperishable “foods” and the animal products.

 

The meat and dairy industries, with the support of the government, are largely responsible for the “protein fashion.” Their message has become a part of the public education systems—its textbooks, its universities, everything it teaches. They want us to believe that those foods which are most unhealthful, foods such as meat, fish, eggs, milk and cheese, are the most important part of our diet. Secondarily, carbohydrates from grains and breads are promoted—this mostly for the benefit of the refining and baking concerns that bring us Wonder Bread, Cheerios, Pop Tarts, etc. Fruits and vegetables are given very low priority, as the money to be made from marketing these foods is much less than from the nonperishable “foods” and the animal products.

 

For one thing, most people, being naturally attracted to sweet things (we are natural biological fruit eaters), manage to get more than enough carbohydrates in their daily diets. This is especially so when we consider the quantity of sugar (refined sugarcane or beets) in the average diet. Desserts, breads, pastas and cereals are quite popular, though these kinds of carbohydrates cause disease because of their nutritional lack of vitamins, minerals, fiber, water, etc., and for other reasons.

For one thing, most people, being naturally attracted to sweet things (we are natural biological fruit eaters), manage to get more than enough carbohydrates in their daily diets. This is especially so when we consider the quantity of sugar (refined sugarcane or beets) in the average diet. Desserts, breads, pastas and cereals are quite popular, though these kinds of carbohydrates cause disease because of their nutritional lack of vitamins, minerals, fiber, water, etc., and for other reasons.

One more note on this subject: One physiology text condones the high-protein diet, even though it states in the same chapter that carbohydrates are the most efficient fuel foods. The reasoning for this is that “adequate nutrition is possible ... if the need for calories, essential food factors, vitamins and minerals is met.” Of course, they are referring to the body’s ability to utilize proteins as carbohydrates if the intake of carbohydrates is insufficient. As you know, this is an extremely inefficient, wasteful process that is also harmful. The harm caused by excess protein and animal foods will be discussed in more depth in later lessons.

One more note on this subject: One physiology text condones the high-protein diet, even though it states in the same chapter that carbohydrates are the most efficient fuel foods. The reasoning for this is that “adequate nutrition is possible ... if the need for calories, essential food factors, vitamins and minerals is met.” Of course, they are referring to the body’s ability to utilize proteins as carbohydrates if the intake of carbohydrates is insufficient. As you know, this is an extremely inefficient, wasteful process that is also harmful. The harm caused by excess protein and animal foods will be discussed in more depth in later lessons.

==== You spoke of losing weight on a fruit diet, but isn’t it true that a person will gain weight on any kind of diet as long as the calories taken in are greater than the energy expended? ====

'''You spoke of losing weight on a fruit diet, but isn’t it true that a person will gain weight on any kind of diet as long as the calories taken in are greater than the energy expended?'''

 

Yes, it is definitely true that a person will gain weight if they consume more calories than they expend. However, anyone who is serious about losing weight must pursue an exercise program of some sort. While a person can lose weight by dieting (or fasting) alone, the loss of excess fat must be accompanied by an improvement in overall health if it is to be worthwhile—and an exercise program is essential to good health, even if it’s taken up after a fast.

Yes, it is definitely true that a person will gain weight if they consume more calories than they expend. However, anyone who is serious about losing weight must pursue an exercise program of some sort. While a person can lose weight by dieting (or fasting) alone, the loss of excess fat must be accompanied by an improvement in overall health if it is to be worthwhile—and an exercise program is essential to good health, even if it’s taken up after a fast.

Because fresh fruits contain much more water than other sources of carbohydrates, they provide satisfaction and a feeling of fullness after relatively few calories are consumed. (Of course, this is not true of dates or dried fruits, which should either be excluded from a weight loss diet or taken in moderation.) It is almost impossible to consume more calories than you expend on a fresh fruit diet—assuming you are active and get daily exercise. The subject of losing weight will be discussed in depth in a later lesson, also.

Because fresh fruits contain much more water than other sources of carbohydrates, they provide satisfaction and a feeling of fullness after relatively few calories are consumed. (Of course, this is not true of dates or dried fruits, which should either be excluded from a weight loss diet or taken in moderation.) It is almost impossible to consume more calories than you expend on a fresh fruit diet—assuming you are active and get daily exercise. The subject of losing weight will be discussed in depth in a later lesson, also.

==== Is it possible for a person to gain weight on the diet you advocate? ====

'''Is it possible for a person to gain weight on the diet you advocate?'''

Yes. Except in rare (relatively) cases where emaciation has occurred, gaining fat is usually not desirable. Many studies have shown that exceptionally lean people have longer lifespans and fewer diseases than people we would consider of “normal” weight. As a rule, lean is best. The important factor is the building of muscle, which can be done with the use of weights, along with a well-rounded exercise program (stretching exercises and aerobic exercises) or to a lesser degree without the use of weights. Body muscle can be developed in any number of ways—from swimming or running (or both) to calisthenics or tennis. Ideally, your program should include some resistance exercises (weights, push-ups, pull-ups, sit- ups, etc.), some aerobic activities and some stretching exercises, and should work all the body muscles. A truly attractive body is not one with five or ten pounds of extra fat, but one that is firm and filled out by normal musculature.

 

Yes. Except in rare (relatively) cases where emaciation has occurred, gaining fat is usually not desirable. Many studies have shown that exceptionally lean people have longer lifespans and fewer diseases than people we would consider of “normal” weight. As a rule, lean is best. The important factor is the building of muscle, which can be done with the use of weights, along with a well-rounded exercise program (stretching exercises and aerobic exercises) or to a lesser degree without the use of weights. Body muscle can be developed in any number of ways—from swimming or running (or both) to calisthenics or tennis. Ideally, your program should include some resistance exercises (weights, push-ups, pull-ups, sit-ups, etc.), some aerobic activities and some stretching exercises, and should work all the body muscles. A truly attractive body is not one with five or ten pounds of extra fat, but one that is firm and filled out by normal musculature.

For those people who are emaciated and do need to gain fat, this should not be rushed. In addition to obtaining generous amounts of exercise (as outlined briefly above), the excessively thin person should make sure his or her life is not too stressful. Also, he or she should consider a fast if there is a chance that adequate calories have been consumed but the body is unable to use them. A physiological rest may be needed more than tremendous amounts of food in this case.

For those people who are emaciated and do need to gain fat, this should not be rushed. In addition to obtaining generous amounts of exercise (as outlined briefly above), the excessively thin person should make sure his or her life is not too stressful. Also, he or she should consider a fast if there is a chance that adequate calories have been consumed but the body is unable to use them. A physiological rest may be needed more than tremendous amounts of food in this case.

When it comes to eating, people of all body weights should eat normal amounts of healthful foods. Weight gain or loss is a body activity that will occur naturally if we provide the normal and proper conditions of life. Gaining or losing weight is not something we do; rather, it is something the body does. We just provide our needs, and the organism will normalize itself.

When it comes to eating, people of all body weights should eat normal amounts of healthful foods. Weight gain or loss is a body activity that will occur naturally if we provide the normal and proper conditions of life. Gaining or losing weight is not something we do; rather, it is something the body does. We just provide our needs, and the organism will normalize itself.

==== Feeding the people in the United States and in the world would not be possible without the food processing industries. There wouldn’t be enough fresh fruits to feed everyone. The diet you propose is totally impractical. How do you answer to this? ====

'''Feeding the people in the United States and in the world would not be possible without the food processing industries. There wouldn’t be enough fresh fruits to feed everyone. The diet you propose is totally impractical. How do you answer to this?'''

 

I’m glad you asked that question! The food processing industries are not in business to see that a larger amount of food is available to the world’s people. Rather, they are in business to make money. Everyone would be better fed, even on a diet of grains, which is very inferior to the fruit diet, if they were consumed in their whole form rather than processed. Foods are more nutritious before they are processed, so people would be healthier if it weren’t for these industries.

I’m glad you asked that question! The food processing industries are not in business to see that a larger amount of food is available to the world’s people. Rather, they are in business to make money. Everyone would be better fed, even on a diet of grains, which is very inferior to the fruit diet, if they were consumed in their whole form rather than processed. Foods are more nutritious before they are processed, so people would be healthier if it weren’t for these industries.

No, our natural diet is far from impractical. The earth is perfectly equipped for the growing of fruit and nut trees and vegetables. Food could also be supplied to those areas where little or no food can be grown in some seasons by using money and manpower for effective food distribution. Nuts, seeds, dates, dried fruits and seeds and beans for sprouting all ship and store relatively well.

No, our natural diet is far from impractical. The earth is perfectly equipped for the growing of fruit and nut trees and vegetables. Food could also be supplied to those areas where little or no food can be grown in some seasons by using money and manpower for effective food distribution. Nuts, seeds, dates, dried fruits and seeds and beans for sprouting all ship and store relatively well.

==== I and many other people have more regular bowel movements because we include bran in our diet. Would you consider this a fairly wholesome part of some people’s diet because of its anti-constipation effect? ====

'''I and many other people have more regular bowel movements because we include bran in our diet. Would you consider this a fairly wholesome part of some people’s diet because of its anti-constipation effect?'''

Absolutely not! Bran is a food fragment; that is, it is only part of the whole wheat berry. It has many sharp edges which irritate and cut the delicate tissues with- in the gastrointestinal tract. Humans require their carbohydrate in the form of us- able sugars—not in the form of indigestible cellulose.

 

Absolutely not! Bran is a food fragment; that is, it is only part of the whole wheat berry. It has many sharp edges which irritate and cut the delicate tissues within the gastrointestinal tract. Humans require their carbohydrate in the form of usable sugars—not in the form of indigestible cellulose.

As far as regular bowel movements go, you will definitely have them on a diet consisting primarily of the foods of our biological adaptation—fresh fruits. It is not for you, me or anyone else to decide how large or how frequent our bowel movements should be—this is strictly a body process that should remain entirely on a subconscious level. We should never have to think about it at all, let alone talk about it. And on the proper diet, you can be sure that everything is happening as it should within your body, for, as you know, the inherent intelligence of your body is great. Our only responsibility is to provide the normal needs of life—and then just live. The body will take care of its own needs.

As far as regular bowel movements go, you will definitely have them on a diet consisting primarily of the foods of our biological adaptation—fresh fruits. It is not for you, me or anyone else to decide how large or how frequent our bowel movements should be—this is strictly a body process that should remain entirely on a subconscious level. We should never have to think about it at all, let alone talk about it. And on the proper diet, you can be sure that everything is happening as it should within your body, for, as you know, the inherent intelligence of your body is great. Our only responsibility is to provide the normal needs of life—and then just live. The body will take care of its own needs.

==== I’m hypoglycemic. There’s no way I could ever go on the fruit diet you advocate. I can get my carbohydrates from starch foods, can’t I? ====

'''I’m hypoglycemic. There’s no way I could ever go on the fruit diet you advocate. I can get my carbohydrates from starch foods, can’t I?'''

 

Yes, you can get your carbohydrates from starch foods. Because of the special problems of such starches as grains (phytic acid; their acid effect), beets (oxalic acid, which binds calcium) and beans (also contain much protein, which makes them digest very poorly), you should stick to lightly-steamed potatoes, yams, cauliflower, carrots and sweet potatoes rather than using grains, beans or beets. They can also be eaten raw or juiced if you like. You may include sprouted seeds and beans, such as chick peas (garbanzos), dry peas, mung beans, alfalfa seeds, etc., as well as lots of vegetables and non-sweet fruits and some nuts, seeds and avocados in your diet. However, do not overdo on the oily foods (nuts, seeds, avocados). Rice and millet are the best of the grains, and can be used in moderation, especially with large raw vegetable salads that contain vegetables such as lettuce, broccoli, cabbage, kale, celery, etc., but that do not contain nuts, seeds, avocados, tomatoes or starch foods. (The rice or millet is sufficient starch for one meal.) Other relatively wholesome starch foods you may want to consider to insure more variety (if variety is important to you) are winter squashes, pumpkins, caladium roots, taro roots, cassava roots and Jerusalem artichokes. Rutabaga and salsify are also wholesome starch foods. (You may not be able to obtain some of the foods listed above, but keep your eyes and ears open.)

Yes, you can get your carbohydrates from starch foods. Because of the special problems of such starches as grains (phytic acid; their acid effect), beets (oxalic acid, which binds calcium) and beans (also contain much protein, which makes them digest very poorly), you should stick to lightly-steamed potatoes, yams, cauliflower, carrots and sweet potatoes rather than using grains, beans or beets. They can also be eaten raw or juiced if you like. You may include sprouted seeds and beans, such as chick peas (garbanzos), dry peas, mung beans, alfalfa seeds, etc., as well as lots of vegetables and non-sweet fruits and some nuts, seeds and avocados in your diet. However, do not overdo on the oily foods (nuts, seeds, avocados). Rice and millet are the best of the grains, and can be used in moderation, especially with large raw vegetable salads that contain vegetables such as lettuce, broccoli, cabbage, kale, celery, etc., but that do not contain nuts, seeds, avocados, tomatoes or starch foods. (The rice or millet is sufficient starch for one meal.) Other relatively wholesome starch foods you may want to consider to insure more variety (if variety is important to you) are winter squashes, pumpkins, caladium roots, taro roots, cassava roots and Jerusalem artichokes. Rutabaga and salsify are also wholesome starch foods. (You may not be able to obtain some of the foods listed above, but keep your eyes and ears open.)

Carbohydrates, like proteins, are composed of simpler compounds known as simple sugars or monosaccharides. According to their composition, these are classed as follows:

Carbohydrates, like proteins, are composed of simpler compounds known as simple sugars or monosaccharides. According to their composition, these are classed as follows:

1. Monosaccharides: Sugars containing only one sugar group or radical. Among the monosaccharides are grape sugar (glucose or dextrose), fruit sugar (fructose or levulose) and galactose of honey. These are the assimilable forms of carbohydrate. Dextrose is the principle member of the glucose group and much less sweet than cane sugar. It is known as grape sugar and is found in fruits, some vegetables and honey. Glucose occurs in both plants and animals and is formed by the action of heat and the ultraviolet rays upon starch in the presence of an acid. Corn syrup is commercially known as glucose. Glucose may also be made by treating starch with sulphuric acid in the presence of heat. Fructose and levulose are derived from fruits and honey. Galactose is a crystalline glucose obtained by treating milk sugar with dilute acids.

# '''Monosaccharides:''' Sugars containing only one sugar group or radical. Among the monosaccharides are grape sugar (glucose or dextrose), fruit sugar (fructose or levulose) and galactose of honey. These are the assimilable forms of carbohydrate. Dextrose is the principle member of the glucose group and much less sweet than cane sugar. It is known as grape sugar and is found in fruits, some vegetables and honey. Glucose occurs in both plants and animals and is formed by the action of heat and the ultraviolet rays upon starch in the presence of an acid. Corn syrup is commercially known as glucose. Glucose may also be made by treating starch with sulphuric acid in the presence of heat. Fructose and levulose are derived from fruits and honey. Galactose is a crystalline glucose obtained by treating milk sugar with dilute acids.

# '''Polysaccharides:''' Colloids or non-crystalizable organic substances known as starches.  

2. Disaccharides: Sugars containing two simple sugars, or that can be broken into two monosaccharides. The ordinary cane sugar or sucrose of commerce is a disaccharide composed of glucose and galactose. Invert sugar found in honey is a mixture of glucose and fructose. Maltose of malt sugar is composed of galactose and glucose. Maple sugar (sucrose) and milk sugar (lactose) are also disaccharides.

There are three main groups of polysaccharides:  

4. Polysaccharides: Colloids or non-crystalizable organic substances known as starches. There are three main groups of polysaccharides: 1) starches; 2) glycogen (animal starch) and 3) pentosans. Pentosans are numerous and include the cellulose or woody fibre of cotton, linen, walls of plant cells, etc. They are usually indigestible, although, in tender cabbage and other very tender vegetables, they are digestible. Galactose found in sugar, seeds, and algae; pectins found in unripe fruit and the gummy exudate on trees and plants are also pentosan's.

Pentosans are numerous and include the cellulose or woody fibre of cotton, linen, walls of plant cells, etc. They are usually indigestible, although, in tender cabbage and other very tender vegetables, they are digestible. Galactose found in sugar, seeds, and algae; pectins found in unripe fruit and the gummy exudate on trees and plants are also pentosan's.

Starches and sugars are well known to everyone, as they are found in all fruits and vegetables. Sugars are soluble carbohydrates with a more or less sweet taste. When heat- ed to a high temperature they form caramel. Sugars are crystalloids; starches are insol- uble and are colloids. Glycogen and milk sugar are the only carbohydrates of animal origin and even these are derived originally from the plant. Animals are incapable of extracting carbon from the air and synthesizing carbohydrates.

Starches and sugars are well known to everyone, as they are found in all fruits and vegetables. Sugars are soluble carbohydrates with a more or less sweet taste. When heated to a high temperature they form caramel. Sugars are crystalloids; starches are insoluble and are colloids. Glycogen and milk sugar are the only carbohydrates of animal origin and even these are derived originally from the plant. Animals are incapable of extracting carbon from the air and synthesizing carbohydrates.

While the sugars are all soluble, raw starch is insoluble. Boiling will render part of it soluble. This, however, hinders its digestion. Starch is converted into a disaccharide in the mouth, and this is converted into a monosaccharide in the intestine.

While the sugars are all soluble, raw starch is insoluble. Boiling will render part of it soluble. This, however, hinders its digestion. Starch is converted into a disaccharide in the mouth, and this is converted into a monosaccharide in the intestine.

The body cannot use starch. It must first be converted into sugar before it can be utilized by the cells. This is done in the process of digestion and begins in the mouth. Disaccharides and polysaccharides are converted into monosaccharides in the process of digestion, as carbohydrates can be absorbed and assimilated only as monosaccharides. Starch must first be converted into sugar, and the complex sugars must be converted into simple sugars before they are absorbed. The body’s need for sugar may easily be sup- plied without eating commercial sugars and syrups or any form of denatured carbohydrate. Child and adult alike should eat only natural sweets and starches.

The body cannot use starch. It must first be converted into sugar before it can be utilized by the cells. This is done in the process of digestion and begins in the mouth. Disaccharides and polysaccharides are converted into monosaccharides in the process of digestion, as carbohydrates can be absorbed and assimilated only as monosaccharides. Starch must first be converted into sugar, and the complex sugars must be converted into simple sugars before they are absorbed. The body’s need for sugar may easily be supplied without eating commercial sugars and syrups or any form of denatured carbohydrate. Child and adult alike should eat only natural sweets and starches.

Sugar is the most important building material in the plant world. A characteristic difference between plants and animals is that, whereas the animal is built up largely out of proteins, the plant is built up largely out of carbohydrates. Plants may be truly said to be made of sugar. They contain various minerals and some nitrogen, but practically the whole fabric of the plant or tree is composed of sugar in some form. Sugars are essential constituents of all plants without which they cannot exist. Indeed, sugars are the most important and most abundant building materials in plants. Out of the immature or sap sugars, plants build their roots, stems, flowers, fruits and seeds. The finished plant is almost literally made of sugar.

Sugar is the most important building material in the plant world. A characteristic difference between plants and animals is that, whereas the animal is built up largely out of proteins, the plant is built up largely out of carbohydrates. Plants may be truly said to be made of sugar. They contain various minerals and some nitrogen, but practically the whole fabric of the plant or tree is composed of sugar in some form. Sugars are essential constituents of all plants without which they cannot exist. Indeed, sugars are the most important and most abundant building materials in plants. Out of the immature or sap sugars, plants build their roots, stems, flowers, fruits and seeds. The finished plant is almost literally made of sugar.

=== Article #2: Digestion Of Foods by Dr. Herbert M. Shelton ===

=== Article #2: Digestion Of Foods by Dr. Herbert M. Shelton ===

Foodstuffs as we eat them constitute the raw materials of nutrition. As proteins, carbohydrates and fats, they are not usable by the body. They must first undergo a disintegrating, refining and standardizing process (more properly a series of processes) to which the term digestion has been given. Although this process of digestion is partly mechanical, as in the chewing, swallowing and “churning” of food, the physiology of digestion is very largely a study of the chemical changes foods undergo in their passage through the alimentary canal. For our present purposes, we need give but little attention to intestinal digestion but will concentrate upon mouth and stomach digestion.

 

 

 

 

 

 

 

 

 

Foodstuffs as we eat them constitute the raw materials of nutrition. As proteins, car- bohydrates and fats, they are not usable by the body. They must first undergo a disin- tegrating, refining and standardizing process (more properly a series of processes) to which the term digestion has been given. Although this process of digestion is partly mechanical, as in the chewing, swallowing and “churning” of food, the physiology of digestion is very largely a study of the chemical changes foods undergo in their passage through the alimentary canal. For our present purposes, we need give but little attention to intestinal digestion but will concentrate upon mouth and stomach digestion.

==== Enzymic Limitations Necessitate the Combining of Compatible Foods ====

==== Enzymic Limitations Necessitate the Combining of Compatible Foods ====

The changes through which foods go in the processes of digestion are affected by a group of agencies known as enzymes. Due to the fact that the conditions under which these enzymes can act are sharply defined, it becomes neccessary to give heed to the simple rules of correct food combining that have been carefully worked out on a basis of the chemistry of digestion.

The changes through which foods go in the processes of digestion are affected by a group of agencies known as enzymes. Due to the fact that the conditions under which these enzymes can act are sharply defined, it becomes necessary to give heed to the simple rules of correct food combining that have been carefully worked out on a basis of the chemistry of digestion.

Long and patient effort on the part of many physiologists in many parts of the world have brought to light a host of facts concerning enzymic limitations, but, unfortunate- ly, these same physiologists have attempted to slur over their importance and to supply us with fictional reasons why we should continue to eat and drink in the conventionally haphazard manner. They have rejected every effort to make a practical application of the great fund of vital knowledge their painstaking labors have provided. Not so the Natural Hygienists. We seek to base our rules of life upon the principles of biology and physiol- ogy.

Long and patient effort on the part of many physiologists in many parts of the world have brought to light a host of facts concerning enzymic limitations, but, unfortunately, these same physiologists have attempted to slur over their importance and to supply us with fictional reasons why we should continue to eat and drink in the conventionally haphazard manner. They have rejected every effort to make a practical application of the great fund of vital knowledge their painstaking labors have provided. Not so the Natural Hygienists. We seek to base our rules of life upon the principles of biology and physiology.

==== What Enzymes Are ====

==== What Enzymes Are ====

Let us briefly consider enzymes in general before we go on to a study of the enzymes of the mouth and stomach. An enzyme may be appropriately defined as a physiological catalyst. In the study of chemistry it was soon found that many substances that do not normally combine when brought into contact with each other may be made to do so by a third substance when it is brought into contact with them. This third substance does not in any way enter into the combination or share in the reaction; its mere presence seems to bring about the combination and reaction. Such a substance or agent is called a cata- lyst and the process is called catalysis.

Let us briefly consider enzymes in general before we go on to a study of the enzymes of the mouth and stomach. An enzyme may be appropriately defined as a physiological catalyst. In the study of chemistry it was soon found that many substances that do not normally combine when brought into contact with each other may be made to do so by a third substance when it is brought into contact with them. This third substance does not in any way enter into the combination or share in the reaction; its mere presence seems to bring about the combination and reaction. Such a substance or agent is called a catalyst and the process is called catalysis.

Plants and animals manufacture soluble catalytic substances, colloidal in nature and but little resistant to heat, which they employ in the many processes of splitting up of compounds and the making of new ones within themselves. To these substances the term enzyme has been applied. Many enzymes are known, all of them, apparently, of protein character. The only ones that need interest us here are those involved in the digestion of foodstuffs. These are involved in the reduction of complex food substances to simpler compounds that are acceptable to the bloodstream and usable by the cells of the body in the production of new cell substance.

Plants and animals manufacture soluble catalytic substances, colloidal in nature and but little resistant to heat, which they employ in the many processes of splitting up of compounds and the making of new ones within themselves. To these substances the term enzyme has been applied. Many enzymes are known, all of them, apparently, of protein character. The only ones that need interest us here are those involved in the digestion of foodstuffs. These are involved in the reduction of complex food substances to simpler compounds that are acceptable to the bloodstream and usable by the cells of the body in the production of new cell substance.

==== Bacterial By Products Poisonous ====

==== Bacterial By Products Poisonous ====

As the action of enzymes in the digestion of foodstuffs closely resembles fermen- tation, these substances were formerly referred to as ferments. Fermentation, however, is accomplished by organized ferments—bacteria. The products of fermentation are not identical with the products of enzymic disintegration of foodstuffs and are not suitable as nutritive materials. Rather, they are poisonous. Putrefaction, also the result of bacter- ial action, also gives rise to poisons, some of them very virulent.

As the action of enzymes in the digestion of foodstuffs closely resembles fermentation, these substances were formerly referred to as ferments. Fermentation, however, is accomplished by organized ferments—bacteria. The products of fermentation are not identical with the products of enzymic disintegration of foodstuffs and are not suitable as nutritive materials. Rather, they are poisonous. Putrefaction, also the result of bacterial action, also gives rise to poisons, some of them very virulent.

==== Digestive Enzymes Extremely Specialized ====

==== Digestive Enzymes Extremely Specialized ====

Each enzyme is specific in its action. This is to say, it acts only upon one class of food substance. The enzymes that act upon carbohydrates do not and cannot act upon proteins nor upon salts nor fats. They are even more specific than this would indicate. For example, in the digestion of closely related substances such as the disaccharides (complex sugars), the enzyme that acts upon maltose is not capable of acting upon lac- tose. Each sugar seems to require its own specific enzyme. The physiologist, Howell, tells us that there is no clear proof that any single enzyme can produce more than one kind of ferment action.

Each enzyme is specific in its action. This is to say, it acts only upon one class of food substance. The enzymes that act upon carbohydrates do not and cannot act upon proteins nor upon salts nor fats. They are even more specific than this would indicate. For example, in the digestion of closely related substances such as the disaccharides (complex sugars), the enzyme that acts upon maltose is not capable of acting upon lactose. Each sugar seems to require its own specific enzyme. The physiologist, Howell, tells us that there is no clear proof that any single enzyme can produce more than one kind of ferment action.

==== Digestion a Step-By-Step Process ====

==== Digestion a Step-By-Step Process ====

This specific action of enzymes is of importance, as there are various states in the digestion of foodstuffs, each state requiring the action of a different enzyme and the vari- ous enzymes being capable of performing their work only if the preceding work has been properly performed by the enzymes that also precede. If pepsin, for example, has not converted proteins into peptones, the enzymes that convert peptones into amino acids will not be able to act upon the proteins.

This specific action of enzymes is of importance, as there are various states in the digestion of foodstuffs, each state requiring the action of a different enzyme and the various enzymes being capable of performing their work only if the preceding work has been properly performed by the enzymes that also precede. If pepsin, for example, has not converted proteins into peptones, the enzymes that convert peptones into amino acids will not be able to act upon the proteins.

The substance upon which an enzyme acts is called a substrate. Thus starch is the substrate of ptyalin. Dr. N. Phillip Norman, Instructor in gastroenterology, New York Polyclinic Medical School and Hospital, New York City, says: “In studying the action of different enzymes, one is struck by Emil Fischer’s statement that there must be a special key to each lock, the ferment being the lock and its substrate the key, and if the key does not fit exactly in the lock, no reaction is possible. In view of this fact, is it not logical to believe the admixture of different types of carbohydrates and fats and proteins in the same meal to be distinctly injurious to the digestive cells? If, since it is true that similar

The substance upon which an enzyme acts is called a substrate. Thus starch is the substrate of ptyalin. Dr. N. Phillip Norman, Instructor in gastroenterology, New York Polyclinic Medical School and Hospital, New York City, says: “In studying the action of different enzymes, one is struck by Emil Fischer’s statement that there must be a special key to each lock, the ferment being the lock and its substrate the key, and if the key does not fit exactly in the lock, no reaction is possible. In view of this fact, is it not logical to believe the admixture of different types of carbohydrates and fats and proteins in the same meal to be distinctly injurious to the digestive cells? If, since it is true that similar

Stomach (gastric) juice ranges all the way from nearly neutral in reaction to strongly acid, depending upon the character of the food eaten. It contains three enzymes-pepsin, which acts upon proteins; lipase, which has slight action upon fats; and rennin, which coagulates milk. The only one of these enzymes that needs concern us here is pepsin. Pepsin is capable of initiating digestion on all kinds of proteins. This is important, as it seems to be the only enzyme with such power. Different protein splitting enzymes act upon the different stages of protein digestion. It is possible that none of them can act upon protein in stages preceding the stage for which they are specifically adapted. For example, erepsin, found in the intestinal juice and in the pancreatic juice, does not act upon complex proteins, but only upon peptides and polypeptides, reducing these to amino acids. Without the prior action of pepsin in reducing the proteins to peptides, the erepsin would not act upon the protein food. Pepsin acts only in an acid medium and is destroyed by an alkali. Low temperature, as when iced drinks are taken, retards and even suspends the action of pepsin. Alcohol precipitates this enzyme.

Stomach (gastric) juice ranges all the way from nearly neutral in reaction to strongly acid, depending upon the character of the food eaten. It contains three enzymes-pepsin, which acts upon proteins; lipase, which has slight action upon fats; and rennin, which coagulates milk. The only one of these enzymes that needs concern us here is pepsin. Pepsin is capable of initiating digestion on all kinds of proteins. This is important, as it seems to be the only enzyme with such power. Different protein splitting enzymes act upon the different stages of protein digestion. It is possible that none of them can act upon protein in stages preceding the stage for which they are specifically adapted. For example, erepsin, found in the intestinal juice and in the pancreatic juice, does not act upon complex proteins, but only upon peptides and polypeptides, reducing these to amino acids. Without the prior action of pepsin in reducing the proteins to peptides, the erepsin would not act upon the protein food. Pepsin acts only in an acid medium and is destroyed by an alkali. Low temperature, as when iced drinks are taken, retards and even suspends the action of pepsin. Alcohol precipitates this enzyme.

Just as the sight, odor or thought of food may occasion a flow of saliva, a “watering of the mouth,” so these same factors may cause the flow of gastric juice, that is a “water- ing of the stomach.” The taste of food, however, is most important in occasioning a flow of saliva. The physiologist, Carlson, failed in repeated efforts to occasion a flow of gastric juice by having his subjects chew on different substances, or by irritating the nerve endings in the mouth by substances other than those directly related to food. In other words, there is no secretory action when the substances taken into the mouth cannot be digested. There is selective action on the part of the body and, as will be seen later, there are different kinds of action for different kinds of foods.

Just as the sight, odor or thought of food may occasion a flow of saliva, a “watering of the mouth,” so these same factors may cause the flow of gastric juice, that is a “watering of the stomach.” The taste of food, however, is most important in occasioning a flow of saliva. The physiologist, Carlson, failed in repeated efforts to occasion a flow of gastric juice by having his subjects chew on different substances, or by irritating the nerve endings in the mouth by substances other than those directly related to food. In other words, there is no secretory action when the substances taken into the mouth cannot be digested. There is selective action on the part of the body and, as will be seen later, there are different kinds of action for different kinds of foods.

In his experiments in studying the “conditioned reflex,” Pavlov noted that it is not necessary to take the food into the mouth in order to occasion a flow of gastric juice.

In his experiments in studying the “conditioned reflex,” Pavlov noted that it is not necessary to take the food into the mouth in order to occasion a flow of gastric juice.

The mere teasing of a dog with savory food will serve. He found that even the noises or some other action associated with feeding time will occasion a flow of secretion.

The mere teasing of a dog with savory food will serve. He found that even the noises or some other action associated with feeding time will occasion a flow of secretion.

It is necessary that we devote a few paragraphs to a brief study of the body’s ability to adapt its secretions to the different kinds of foodstuffs that are consumed. Later we will discuss the limitations of this power. McLeod’s Physiology in Modern Medicine says: “The observations of Pavlov on the responses of gastric pouches of dogs, to meat, bread and milk have been widely quoted. They are interesting because they constitute evidence that the operation of the gastric secretory mechanism is not without some pow- er of adaptation to the materials to be digested.”

It is necessary that we devote a few paragraphs to a brief study of the body’s ability to adapt its secretions to the different kinds of foodstuffs that are consumed. Later we will discuss the limitations of this power. McLeod’s Physiology in Modern Medicine says: “The observations of Pavlov on the responses of gastric pouches of dogs, to meat, bread and milk have been widely quoted. They are interesting because they constitute evidence that the operation of the gastric secretory mechanism is not without some power of adaptation to the materials to be digested.”

==== Digestion Proceeds Intelligently ====

==== Digestion Proceeds Intelligently ====

=== Article #3: Starches Are Second-Rate Foods by Marti Fry ===

=== Article #3: Starches Are Second-Rate Foods by Marti Fry ===

Have you noticed how often we state that fruits are the foods to which we are biologically suited? We rank them as first-class foods and we rank starchy foods such as tubers, legumes and grains as second- or third-class foods. One reason for this, as you may know, is that most starchy foods have to be cooked to make them tasty. Of course there are exceptions to this:

Have you noticed how often we state that fruits are the foods to which we are biologically suited? We rank them as first-class foods and we rank starchy foods such as tubers, legumes and grains as second or third-class foods. One reason for this, as you may know, is that most starchy foods have to be cooked to make them tasty. Of course there are exceptions to this:

# Some people like potatoes, yams, etc., raw.

# Some people like potatoes, yams, etc., raw.

# Some mildly starchy vegetables such as carrots, peas and cauliflower are palatable in the raw state to most people.

# Some mildly starchy vegetables such as carrots, peas and cauliflower are palatable in the raw state to most people.

# Many legumes can be sprouted instead of cooked.  But despite these exceptions, starchy foods are not ideal for humans. Unlike sugars from fruits, which pass almost directly from the stomach to the small intestine for ab- sorption, starches must be converted to sugar for the body to unlock their energy potential.  Most animals secrete starch-splitting enzymes called amylases, derived from the Latin word meaning—you guessed it—starch-splitting. In humans, starch digestion be- gins in the mouth: Our saliva contains an amylase called ptyalin, from the Greek word ptyalin, meaning saliva. Ptyalin, also called salivary amylase, changes starch chemically into maltose, a complex sugar.  Many other animals, such as pigs, birds and other starch eaters, but not humans, secrete other additional amylases to insure complete starch digestion. To be sure bf adequately digesting the starch we humans consume, we must chew our food very, very thoroughly so it becomes well-mixed with saliva. The starch that’s converted to maltose by salivary enzymic action is further broken down in the small intestine by the enzyme maltase into the simple sugar, dextrose, for the bloodstream can absorb only simple sugars, never starches or complex sugars. (Dextrose is dextrorotatory glucose.) Only 30 to 40 percent of the starch eaten can be broken down by ptyalin in the mouth. If starches are eaten with (or close in time to ingestion of) acid fruits (citrus fruits or tomatoes) or with protein foods, the ptyalin in the saliva that’s swallowed with the food cannot further break down the starch into simple sugars. This is because ptyalin can only act in an alkaline environment and the stomach environment becomes acid when proteins are consumed. The acids in fruits will also inhibit the secretion of ptyalin. Hence, you should take care to eat starchy foods (if you eat them at all) with vegetables and not with acid or protein foods to insure the best possible digestion.  We do secrete a pancreatic amylase in our intestine to digest starches not handled by salivary amylase (ptyalin). But starches, often partially decompose in the stomach before they get to the intestine.  In addition, there’s a problem relative to human starch digestion and this is another reason why starches are usually cooked or sprouted (besides for taste):

# Many legumes can be sprouted instead of cooked.   

But despite these exceptions, starchy foods are not ideal for humans. Unlike sugars from fruits, which pass almost directly from the stomach to the small intestine for absorption, starches must be converted to sugar for the body to unlock their energy potential.  Most animals secrete starch-splitting enzymes called amylases, derived from the Latin word meaning—you guessed it—starch-splitting. In humans, starch digestion begins in the mouth: Our saliva contains an amylase called ptyalin, from the Greek word ptyalin, meaning saliva. Ptyalin, also called salivary amylase, changes starch chemically into maltose, a complex sugar.  Many other animals, such as pigs, birds and other starch eaters, but not humans, secrete other additional amylases to insure complete starch digestion. To be sure bf adequately digesting the starch we humans consume, we must chew our food very, very thoroughly so it becomes well-mixed with saliva. The starch that’s converted to maltose by salivary enzymic action is further broken down in the small intestine by the enzyme maltase into the simple sugar, dextrose, for the bloodstream can absorb only simple sugars, never starches or complex sugars. (Dextrose is dextrorotatory glucose.) Only 30 to 40 percent of the starch eaten can be broken down by ptyalin in the mouth. If starches are eaten with (or close in time to ingestion of) acid fruits (citrus fruits or tomatoes) or with protein foods, the ptyalin in the saliva that’s swallowed with the food cannot further break down the starch into simple sugars. This is because ptyalin can only act in an alkaline environment and the stomach environment becomes acid when proteins are consumed. The acids in fruits will also inhibit the secretion of ptyalin. Hence, you should take care to eat starchy foods (if you eat them at all) with vegetables and not with acid or protein foods to insure the best possible digestion.  We do secrete a pancreatic amylase in our intestine to digest starches not handled by salivary amylase (ptyalin). But starches, often partially decompose in the stomach before they get to the intestine.  In addition, there’s a problem relative to human starch digestion and this is another reason why starches are usually cooked or sprouted (besides for taste):

According to The Textbook of Medical Physiology by Arthur C. Guyton, M.D.:

According to The Textbook of Medical Physiology by Arthur C. Guyton, M.D.:

Tradition has it that man’s original diet was fruit. While we have no written history of a period when man lived on a fruit diet, there is plenty of evidence to substantiate the view that he once did so. We do know that fruits have historically constituted an important part of man’s diet in most parts of the earth from remote times. Only within recent centuries, and then only in certain parts of the earth, has the notion that fruits have little food value come about.

Tradition has it that man’s original diet was fruit. While we have no written history of a period when man lived on a fruit diet, there is plenty of evidence to substantiate the view that he once did so. We do know that fruits have historically constituted an important part of man’s diet in most parts of the earth from remote times. Only within recent centuries, and then only in certain parts of the earth, has the notion that fruits have little food value come about.

Most fruits are abundantly supplied with sugar and it is quite possible to gain weight on a fruit diet. Some fruits, like the avocado and most nuts (nuts are also fruits, technically speaking) contain considerable fat. While few of the pulpy fruits are abundant- ly supplied with protein, some of them do contain a higher percentage of protein than mother’s milk. Practically all nuts are rich in protein of high biological value. One does not have to eat animal foods in order to supply himself with an abundance of all the amino acids required.

Most fruits are abundantly supplied with sugar and it is quite possible to gain weight on a fruit diet. Some fruits, like the avocado and most nuts (nuts are also fruits, technically speaking) contain considerable fat. While few of the pulpy fruits are abundantly supplied with protein, some of them do contain a higher percentage of protein than mother’s milk. Practically all nuts are rich in protein of high biological value. One does not have to eat animal foods in order to supply himself with an abundance of all the amino acids required.

In the last century a veritable fruitophobia arose both in Europe and America and people refrained from eating fruits because they supposedly caused disease. Fruits were accused of causing various diarrheal diseases, even typhoid and cholera. It is a fact that a large excess of fresh fruit will result in loose stools, but this is not an objection to fruit eating. One has only to cease taking the fruit in excess to have the bowel looseness cease.

In the last century a veritable fruitophobia arose both in Europe and America and people refrained from eating fruits because they supposedly caused disease. Fruits were accused of causing various diarrheal diseases, even typhoid and cholera. It is a fact that a large excess of fresh fruit will result in loose stools, but this is not an objection to fruit eating. One has only to cease taking the fruit in excess to have the bowel looseness cease.

Thus, by a simple process of reasoning upon well-known facts of nature, he had arrived at the conclusion that, while man’s normal diet as represented in the spontaneous products of nature contains little starch, the cultivated food plants of civilized man were abundant in starch. This led to the question: “What are the effects of starch upon the system?” “Wherein,” he asked, “Does a diet that is without starch differ physiologically from one in which starch is the predominant element?”

Thus, by a simple process of reasoning upon well-known facts of nature, he had arrived at the conclusion that, while man’s normal diet as represented in the spontaneous products of nature contains little starch, the cultivated food plants of civilized man were abundant in starch. This led to the question: “What are the effects of starch upon the system?” “Wherein,” he asked, “Does a diet that is without starch differ physiologically from one in which starch is the predominant element?”

Seeking a reply to this last question, he noted first of all “that the two foods (fruits and starch or cereals) involve a different process of digestion.” “Sweet fruits are com- posed largely of glucose, with a fair proportion of nitrogen ...” cereals are composed largely of starch, with a higher proportion of nitrogen. The carbohydrate in nuts is largely sugar. If fruits and nuts constitute man’s normal diet, as his reasoning had concluded, the starch diet is not his normal diet.

Seeking a reply to this last question, he noted first of all “that the two foods (fruits and starch or cereals) involve a different process of digestion.” “Sweet fruits are composed largely of glucose, with a fair proportion of nitrogen ...” cereals are composed largely of starch, with a higher proportion of nitrogen. The carbohydrate in nuts is largely sugar. If fruits and nuts constitute man’s normal diet, as his reasoning had concluded, the starch diet is not his normal diet.

But he was met by one of the most convenient arguments that the evolution hypothesis has supplied its votaries. “Since man, by artificial contrivance and agriculture,” it was reasoned, “has developed and employed cereals and starchy vegetables as the basis of his diet, he has reversed what appears to be the natural order.” Densmore examined this contention in the light of anatomy and physiology and found that man’s digestive

But he was met by one of the most convenient arguments that the evolution hypothesis has supplied its votaries. “Since man, by artificial contrivance and agriculture,” it was reasoned, “has developed and employed cereals and starchy vegetables as the basis of his diet, he has reversed what appears to be the natural order.” Densmore examined this contention in the light of anatomy and physiology and found that man’s digestive

In this connection, sugar means the sweet fruits produced by old mother nature herself, not the processed sugars of commerce. Sugars, whether in the form of sugar (crystals-brown or white) or in the form of syrups that have been separated from their associated nutrients and that have been concentrated and changed, do not constitute ideal foods for man or beast. The maple sugar, cane sugar, beet sugar, milk sugar and fruit sugars of commerce and the syrups and molasses that are freely eaten, whether from cane or maple sap, do not constitute really good foods for man. Honey, even when pure and unchanged, is not a good food for man for much the same reason, and for added reasons. It is a fine food for bees.

In this connection, sugar means the sweet fruits produced by old mother nature herself, not the processed sugars of commerce. Sugars, whether in the form of sugar (crystals-brown or white) or in the form of syrups that have been separated from their associated nutrients and that have been concentrated and changed, do not constitute ideal foods for man or beast. The maple sugar, cane sugar, beet sugar, milk sugar and fruit sugars of commerce and the syrups and molasses that are freely eaten, whether from cane or maple sap, do not constitute really good foods for man. Honey, even when pure and unchanged, is not a good food for man for much the same reason, and for added reasons. It is a fine food for bees.

It was believed in Densmore’s day and it is still believed that toasting starch, as in toasting bread, dextrinizes it, thus rendering it more easily digested. Although the toast- ing of bread spoils much of the food value that remains in it after the first baking, and converts part of it into charcoal, precious little dextrinization occurs. Densmore, accepting the dextrinization of bread by toasting, said: “the sweet fruits are removed a step beyond. If there was some method by which a piece of toast could undergo a second transformation and the dextrin be converted into glucose, it would then in all probability be substantially as easy of digestion as the sweet fruits for the simple reason that it would already be glucose; in a word, no digestion would be necessary.”

It was believed in Densmore’s day and it is still believed that toasting starch, as in toasting bread, dextrinizes it, thus rendering it more easily digested. Although the toasting of bread spoils much of the food value that remains in it after the first baking, and converts part of it into charcoal, precious little dextrinization occurs. Densmore, accepting the dextrinization of bread by toasting, said: “the sweet fruits are removed a step beyond. If there was some method by which a piece of toast could undergo a second transformation and the dextrin be converted into glucose, it would then in all probability be substantially as easy of digestion as the sweet fruits for the simple reason that it would already be glucose; in a word, no digestion would be necessary.”

Certainly, as he contended, sweet foods would be far better for the weakened individual and the invalid, with lowered digestive powers, than would be a diet of starches. If there is one starch food that may be regarded as an exception to this rule, it would be the potato, as its starch is more easily and speedily converted into sugar than the starch of cereals, legumes, etc. But Densmore goes further than a consideration of the interests of the invalid when he says, “it would seem plain that a human being in apparently robust health is much more liable to remain so upon a food that is adapted to his organism and that is of easy digestion, than upon one that is a foreign body and that must undergo a protracted and difficult digestion before being of use to the system.”

Certainly, as he contended, sweet foods would be far better for the weakened individual and the invalid, with lowered digestive powers, than would be a diet of starches. If there is one starch food that may be regarded as an exception to this rule, it would be the potato, as its starch is more easily and speedily converted into sugar than the starch of cereals, legumes, etc. But Densmore goes further than a consideration of the interests of the invalid when he says, “it would seem plain that a human being in apparently robust health is much more liable to remain so upon a food that is adapted to his organism and that is of easy digestion, than upon one that is a foreign body and that must undergo a protracted and difficult digestion before being of use to the system.”

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