the main
about the project
Medicine news
To authors
Licensed books on medicine
<< Ahead Next >>

Rational nutrition - the guarantee of health

Our nutrients should be a remedy, and our remedies should be nutrients.


Principles of rational nutrition. Squirrels. Fat Carbohydrates. Cellulose. Pectic substances. Vitamins. Minerals.

Nutrition that provides full development is called rational (the ratio from the Latin. - reason, calculation, measure and lationalis - reasonable, expedient). All issues relating to the beneficial and harmful properties of food, the quantity and quality of food consumed by man have been studied by such science as food hygiene.

Nutrition Hygiene highlights the following principles of nutrition:

1. Strict compliance of the energy value of food with the energy consumption of the body.

2. Separate nutritional substances of a balanced diet (proteins, fats, carbohydrates, minerals, vitamins, etc. BAS) should be in a strictly defined ratio between each other: b: g: y = 1: 1: 4 (almost like sausage, oil and bread in a sandwich).

3. Compliance with the diet (mode - the distribution of food during the day by time, calorie, volume, ie, the multiplicity of food intake and the intervals between them).

4. Creating optimal conditions for the assimilation of food by man in the preparation of a daily diet (food of protein origin is planned for the first half of the day, etc.).

5. Food should be perfect in sanitary and epidemiological terms. Products should not pose a health hazard due to the presence of physical, chemical or biological pollutants or deterioration processes (oxidation, fermentation, salinization, etc.) if they are not properly stored and sold.

These principles are adopted by the scientific medical community of all countries of the world. And fashionable regularly arising diets according to P. Bragg, G. Shelton, blood type, etc., are nothing more than a political order to relieve social tension in a society that cannot afford to eat meat, oil, eggs, and etc., i.e. natural expensive and vital human food.

Table 4 - Energy costs of a person depending on the type of activity

To maintain a normal body weight a person needs to know how many calories his body consumes per day and how much they consume. Calorie consumption depends on gender, age and physical activity. The scientists of the Institute of Nutrition of the Academy of Medical Sciences identified five labor groups depending on their physical activity and determined the approximate energy consumption for each of these groups (Table 4). Knowing the energy value of food, it is easy to calculate the number of calories contained in the daily diet of any person (Appendix 3).

The main nutritional ingredients of the products are proteins, fats and carbohydrates. In addition, with food we get vitamins, minerals and water.

For protein foods include products of animal origin: meat, fish, poultry and eggs. Proteins are a “building material”, they are necessary for the human body because they contain essential amino acids, that is, they are not formed directly in it. And in general, by the definition of the great philosopher F. Engels, "Life is a way of existence of protein bodies." Lack of protein in the diet is especially dangerous for children, teenagers and pregnant women. Therefore, vegetarianism is unnaturally human nature.

Famous phytotherapeutist-pharmacologist O.D. In his wonderful book Introduction to Herbal Medicine, Barnaul writes, “It would seem that I, as a phytopharmacologist, a phytotherapist, need to promote vegetarianism, but I was not so lucky among pure and not very pure vegetarians, raw foodists, I most often met people with mental disabilities ".

Fats are also necessary for the normal functioning of the body, it is a reserve of energy and a source for the formation of certain hormones, cell membranes, etc. They consist of glycerol and higher fatty acids (IVH). Especially important for human health are the so-called polyunsaturated high fatty acids, which are even called vitamin F. They contribute to the normalization of cholesterol metabolism in the body and thus prevent the development of atherosclerosis. In the 70s. there was even an anti-sclerotic pharmaceutical drug "Linetol", which was linseed oil.

Polyunsaturated fatty acids are contained in liquid (low-melting) fats, that is, in such vegetable oils as olive oil, sunflower oil, as well as in fish and pork fat, they are not synthesized in the human body and must always be supplied, we must come from outside.

All other products are related to carbohydrates - the sources of "fast energy", which are chains of saccharides. If the chains are short (mono-, disaccharides), then carbohydrates are sweet in taste and easily absorbed in the intestines.
These are honey, sugar, glucose, fructose, which are the main source of energy in the human body. In the absence of such carbohydrates in food, they begin to suffer and even die off brain cells.

If the carbohydrate chain is very long, like that of fiber, then the intestine cannot digest it (in the human intestine there are not so many departments for this, as, for example, a cow) and nothing is absorbed into the blood. Why then eat foods rich in fiber, such as raw vegetables, fruits, bran and bakery products from gray flour? Cellulose acts on the intestinal wall, like a straw on an earthworm. If you poke it with a straw, it will be made. Similarly, the intestinal wall, when exposed to fiber, begins to move, that is, peristalsis appears, which contributes to the promotion of the food lump. And even coarse fiber - a kind of broom, it carries with it all that sticks to the walls of the intestine. Here is such a benefit from it - cleansing.

The role of intestinal cleanser is performed by another substance of carbohydrate nature, which is also not absorbed - pectin. This is a powerful sorbent that collects all poisons and radionuclides in its path. Especially a lot of pectic substances in the juice of red currants, they are in apples.

It is important to remember one very useful tip. With intestinal upset it is forbidden to eat raw fruits and vegetables, since the fiber contained in them will increase diarrhea. But if the apples are baked in the oven, the fiber will collapse, and the pectins will be released, and the apple will have the same effect as “Smecta” or activated charcoal. A sick person has no appetite, and if this is a small child, it is all the more almost impossible to feed him. Giving a baked apple, you immediately perform two functions: feed the person and cleanse his digestive tract from poisons.

Medium chain carbohydrates contain starch, which, slowly splitting, is gradually absorbed. Thanks to starch, many foods that contain it (bread, cereals, pasta, potatoes) cause a person to feel full.

Modern industry produces refined, i.e. highly refined products, such as refined sugar, refined vegetable oil or high-grade flour and its products. Such products are deprived of fiber, vitamins, other biologically active substances and often harm the body, since they are not natural for it. Although they seem tasty to us, they should be avoided if possible.

Vitamins play a significant role in human health. These are low-molecular biologically active substances (BAS), without which a person cannot exist (from Lat. Vita-life). With their lack of in the human body such painful conditions as hypovitaminosis develop, with an excess - hypervitaminosis, and in the complete absence - avitaminosis (Table 5).

Table 5 - Basic vitamins and their effects on the body

Table 6 - The main chemical elements and their effects on the body

One of the most important food ingredients is water. It is 2/3 of the human body mass, takes part in all biochemical processes, in removing toxins from the body. A person should consume at least 2-3 liters of water per day. It should pay attention to the fact that tap water is not always suitable for drinking and cooking. It is best to pass through special filters, you can “freeze”. In a number of regions of the Russian Federation, tap water is only suitable for technical purposes and the population has to buy or collect water from a water carrier.

It becomes clear that absolutely all nutrients are vital for the human body and the most healthy is a mixed diet, in which there are a variety of foods, both animal and vegetable origin.

Test questions and tasks

1. What are the principles of nutrition.

2. What are vitamins and what diseases are associated with them?

3. What is fiber and what is it for?

4. What food is called protein?

5. What foods are carbohydrates?

6. What do you know about the role of minerals in human nutrition?

7. Using Appendix 3, calculate the caloric value of your daily diet and compare it with the energy consumption required for your work group.

8. Remember the new terms and definitions that you encountered while studying this topic.
<< Ahead Next >>
= Go to tutorial content =

Rational nutrition - the guarantee of health

  1. HLS of a newborn baby - the guarantee of health of a lifetime
    Divine art itself cannot create anything more beautiful than a mother and her child. Friedrich Schiller Breastfeeding. Hypogalactia and its prevention methods. All that a newborn child can do in the process of its vital activity is to sleep, eat and send natural needs. For a baby, it’s a lot of work, and how it’s organized
  2. Balanced diet
    “Everything is good and everything is evil - said the great ancient physician Paracelsus - only measure is important”. These words refer to nutrition, probably more than to any other phenomenon of human life. The fact that the quality of human existence depends on the nature of nutrition is a commonplace truth today. The problem, however, is that absolutely any product can be for our
  3. Balanced diet
    Translated from the Latin word "diet" means the daily portion of food, and the word "rational", respectively, translated as reasonable or expedient. Nutrition can be considered rational only when it meets the human body’s need for plastic (building) substances, fills up its energy expenditure without an excess, corresponds to
  4. Rational nutrition student
    Good nutrition is one of the factors for maintaining human health and longevity, and for the prevention of chronic and infectious diseases. Proper growth and development of the child's body is impossible without ensuring its full nutrition. Thus, the lack of proteins in food can lead to a delay in the physical and mental development of the child, slowing puberty. In the same time
    Nutrition is the most important physiological need of the body, aimed at maintaining and ensuring its basic functions, such as growth, development and ability to vigorous activity. Rational is food that satisfies the energy, plastic and other needs of the body, while providing the necessary level of metabolism. Nutrition is
  6. Balanced diet
    Rational nutrition (from the Latin. Ratio - mind) - nutrition, which is balanced in terms of energy by calories, composition, depending on gender, age and type of activity. The role of nutrition in ensuring the vital activity of the organism is well known: maintaining metabolic processes at a relatively constant level, energy supply, enzyme synthesis, plastic role, etc. Wrong
  7. Question 41 Nutrition
    All life processes in the human body are largely dependent on what its nutrition consists of from the first days of life, as well as on the diet. In the process of vital activity, every living organism continuously spends its constituents. Much of these substances are "burned" (oxidized) in the body, resulting in the release of energy. This energy is the body
  8. Nutrition and rules of its organization
    Nutrition is considered rational if it replenishes the body’s energy expenditure, provides for its need for plastic substances, and also contains all the vitamins, macro- and microelements, dietary fiber necessary for vital activity, and the dietary quantity corresponds to the enzymatic capabilities of the gastrointestinal tract. It's about nutrition with
    In the definition of life as a form of metabolism with the environment, during which the body as an open system receives from the outside substances that serve as building material, ensuring its growth and development, as well as the formation of daughter organisms in the reproduction process, and supplying it with energy, in this chapter Attention should be paid to the "metabolism", since the latter is possible
  10. Balanced diet
    Food products that nature could offer in evolution to a living organism ultimately led to the formation of the human body, the physiological mechanisms of which are focused on natural nutrient complexes. For many millions of years, human ancestors were vegetarians, using sufficient protein, relatively rich in fats and low in carbohydrates food. It is these substances
  11. Balanced diet
    Food products that nature could offer in evolution to a living organism ultimately led to the formation of the human body, the physiological mechanisms of which are focused on natural nutrient complexes. For many millions of years, human ancestors were vegetarians, using sufficient protein, relatively rich in fats and low in carbohydrates food. It is these substances
  12. Basics of rational nutrition for pregnant women
    A balanced diet is one of the main conditions for a favorable course and outcome of pregnancy, childbirth, fetal development and an unborn child. It plays a significant role in the prevention of anemia, gestosis, fetal growth retardation, anomalies of labor, and other complications. Nutrition refers to a full range of diverse foods, respectively.
  13. Rational nutrition of modern man
    It is regrettable to note that currently there are no scientifically based recommendations on nutrition, as well as the science of nutrition itself. At the end of the 19th century, the WHO Congress approved the provision according to which the quantity of food needed by a person should be determined on the basis of its caloric value. At the same time, calculations based on studying the diet were taken as the basis.
Medical portal "MedguideBook" © 2014-2016