The function of vitamins. The main functions of vitamins in the human body

Of Course, everyone knows that for the normal functioning of the body essential vitamins. We regularly talk about the necessity of eating fruits and vegetables, they say, they abound with nutrients. We often hear that in the period of seasonal “domination” of viruses and bacteria, as well as after physical and mental stress, we need to compensate for a deficiency of vitamins, micro - and macroelements. And sometimes the simple inhabitant not know why. The fact is that not everyone knows what is the function of vitamins in the human body.

Who needs them in the first place?

Certainly, few dare to dispute the fact that the nutrients necessary for everyone. The function of vitamins – the maintenance of normal health of the body. Their deficiency leads to diminished health, which leads to diseases of various types. One way or another, but there are categories of people nutrients are vital: children, adolescents, the sick, pregnant and lactating women.

However, this does not mean that other people can do without them. The fact that another important function of vitamins-strengthen the immune system, and this means that every person who cares about their own health, regularly obliged to accept them. However, before considering the question of what role the above-mentioned substances play in our bodies, determine what they represent.

What we know about them?

Vitamins are special organic compounds that the body is unable to produce on their own. Of course, this lack kompensiruet with food.

It Should be noted that the function of vitamins are different, depending on the structure of chemical compounds. In particular, there are acid, such as vitamin “With”. There are salt-vitamin “15”. Vitamin a belongs to the alcohols with high molecular weight, moreover, sensitive to oxygen and heat.

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One of them is a homogeneous chemical compound, and the other vitamins “B”, “C”, “D” - consists of many chemicals.

How they work?

And still move on to the main question: “What are the functions of vitamins”?

Almost all of them have a low molecular weight. What does it mean? Just what the main functions of the vitamins – it's a complex build of all processes in our body. Despite the fact that we need only a small concentration of nutrients, vitamins we need, first of all, because they play a major role in the metabolism, which is a complex system of conversion of food coming from outside in the form of proteins, carbohydrates, fats, salts, vitamins and water. First the food is crushed, then in the course of organic changes digested, and at the final stage transformirovalsya in the building material for the formation of new molecules or is converted into energy. It must be emphasized that the supply of building material for cells and ensuring their energy – it is not the function of vitamins. They only ensure that the metabolic processes in the body was normal. Due to the above mentioned nutrients of our body's biochemical reactions possible. Their action is equivalent to the action of water, which, having sparse structure, can penetrate all the tissues and organs.

Still, why are they so necessary?

In a figurative sense, the body is a huge chemical company where the production of energy and manufacture of building material for the cells of the body.

The Vitamins – it is an integral part of all living entities, they are necessary for the activation of chemical reactions in our tissues. In other words, play the role of a catalyst not taking part directly in these reactions. In particular, «track» breakdown of food into simple and soluble components, “control” to simple substances are transformed into energy source. Of course, this is a unique and vital function of vitamins in the human body. They seem to act as managers: direct involvement in the work is not accepted, but their presence ensures a smooth and normal operation of vital systems. That's the kind of invaluable assistance to our health vitamins, functions in the body which are not limited. In addition, they stimulate the formation of enzymes. Acting as a coenzyme, the vitamin is very active: under his influence all processes in the body occur very quickly, for example, when talking about the decomposition of starch.

As already mentioned, each group of the above nutrients affects certain organs and tissues, and their deficiency may lead to health disorder. So, we have considered two main questions, namely: why the person is so important vitamins, functions of vitamins. Beriberi, unfortunately, not uncommon.

Vitamin “A”

First and foremost, it promotes the growth of a young organism, improves the condition of epithelial cells affects the formation of the skeleton.

In symbiosis with vitamin C vitamin a reduces the level of lipids and cholesterol in the blood. The deficiency of this substance leads to liver dysfunction, adrenal and thyroid glands.

Vitamin B1

Controls fat, protein metabolism, fatty acid synthesis, and activates the conversion process of carbohydrates into fat. Furthermore, vitamin B1 improves the functioning of digestive system and heart.

Vitamin B2

This organic compound helps convert fats and carbohydrates into energy. It is from its quantity depends on the temperament and energy level of a person.

Vitamin B3

It also has beneficial effects on the thyroid, liver and adrenal glands. Vitamin B3 normalizes the function of the nervous system, with its lack of the person a feeling of anxiety.

Vitamin B6

This compound is involved in metabolic processes and formation of enzymes. In addition, vitamin B6 controls the metabolism of fats.

Vitamin B12

Has Antianemic effect and also regulates metabolism, promotes normal growth of the child.

Vitamin C

Performs a redox function and is involved in protein metabolism. It also improves the immune system and normalizes psychoemotional state of a person.

Vitamin D

This element controls the deposition of phosphorus and potassium phosphate in the bone tissue, its deficiency leads to tooth decay.

In addition, it improves the function of intestinal absorption of phosphorus and calcium salts.

Vitamin E

Vital for pregnant women as it promotes normal development of the fetus. It also activates the process of producing seminal fluid.

Vitamin PP

Normalizes the digestive system, improves liver function: helps to pigmentirovanie, accumulation of glycogen and the removal of toxins from the body.