Vitamins are organic substances that are necessary for life

Vitamins are organic substances that (in most cases) are not synthesized in the human body (or are formed in a small amount), so they are indispensable in nutrition. There are 20 vitamins known to affect human health. The amount of consumption depends on the sex, age and level of physical activity of a person.

Vitamins are organic substances necessary for human health. Their shortage leads to serious consequences.

The absence of any vitamin in the food can cause various diseases.

Vitamins are organic substances that affect life activity, participate in the synthesis of hormones, metabolism, promote the normal functioning of the body.

Virtually all vitamins are well studied, their role in the vital activity of a living organism is determined.

Vitamins of 2 kinds

Vitamins are organic substances necessary for the formation of enzymes. Therefore, the high activity of enzymes depends on the amount of vitamins that have entered the body.

Fat-soluble vitamins are absorbed only with fat. Consumption of vitamin A, for example, is better to combine with the intake of sour cream or oil.

Water-soluble vitamins do not need fats.

Fat-soluble

Vitamins are organic substances that must be considered in a complex. By itself, a vitamin can not bring the necessary benefits, but together with another element will help to avoid violations in the body.

Vitamin A

This vitamin affects the visual function, namely it is involved in the synthesis of the protein of the cornea of the eye. Lack of vitamin A reduces vision, which over time can lead to chicken blindness, keratinization of the skin, reduced resistance to infections.

The main sources of this vitamin are meat, liver, green and red flowers, orange and yellow fruits.

All that we eat, gets into the liver, including vitamin A, so its surplus is undesirable.

Vitamin D

Participates in the processes of assimilation of calcium and phosphorus, reduces the excretion of these minerals from the body and ensures the optimal rate of their arrival to the bones.

Deficiency of vitamin D causes osteoporosis.

Main sources: liver, eggs, fish oil.

Excess leads to calcium deposits in the vessels.

Vitamin E

Vitamins are organic substances that not only participate in the metabolism, but also prevent the destruction of living cells. Vitamin E is such a vitamin. It is an antioxidant, binds free radicals to oxygen, prevents the destruction of proteins, fatty and nucleic acids.

Main sources: vegetables, grains, butter.

Excess of the vitamin causes neurologic disorders.

Vitamin K

Participates in blood clotting.

The main source: an independent synthesis in the intestine. Additionally come with food (meat, cereals, vegetables).

The lack of vitamin increases the coagulation time of the blood.

Water-soluble vitamins

There are many more. Let's consider this group in more detail.

Vitamin C

Activates metabolic processes, protective functions of body cells.

The main sources are citrus fruits, tomatoes, fruits, vegetables.

Deficiency of vitamin C causes scurvy, skin damage.

Vitamin B1

Participates in oxidative processes, synthesis of various enzymes.

The main sources: liver, pork, beans, cereals.

Deficiency leads to beriberi disease.

Vitamin B2

Its main function is to participate in the energy exchange.

The source of the vitamin can be a variety of products. But their long stay in the sun or prolonged heat treatment lead to its destruction.

Deficiency causes a violation of the integrity of the skin, a violation of twilight and light vision.

Vitamin B5

Participates in the metabolism. Vitamin B5 is found in many foods. Deficiency can be associated with prolonged starvation and leads to numbness of limbs, rapid fatigue, insomnia, headaches.

Vitamin B6

Participates in a large number of processes in the body, including immune restoration of the body, carbohydrate metabolism.

The main sources are vegetables, meat, cereals.

With a deficiency of vitamin B6, appetite decreases, anemia develops.

Vitamin B9

Participates in blood formation, protein metabolism, the formation of leukocytes, erythrocytes, platelets, lowers cholesterol.

Contained in legumes, spinach, green vegetables.

Deficiency causes anemia.

Vitamin B12

It participates in blood formation, amino acid metabolism, and the work of the nervous system.

Contained in eggs, meat, dairy products.

Deficiency causes anemia, nervous disorders.

Vitamin PP

It participates in blood formation, activity of the nervous system, digestion of food.

Excess of vitamin reduces blood pressure.

Vitamin P

Participates in strengthening the walls of blood vessels, helps improve the resistance of the body to infections. Contained in citrus fruits, walnuts, green tea, berries.

Vitamin H

Participates in metabolic processes.

Contained in meat, vegetables, eggs.

Deficiency causes skin diseases.

Excess and shortage

Vitamins are organic substances that can not be replaced by anything in the body. Most of them enter the body with food. Depending on the amount of vitamins consumed with food, several conditions can be distinguished:

1. Avitaminosis.
2. Hypovitaminosis.
3. Hypervitaminosis.

The first condition is characterized by a metabolic disorder, which is caused by a prolonged deficit of any vitamins (or one vitamin) in the body. Avitaminosis leads to a serious illness or death.

The second condition is typical with reduced intake of vitamins. Hypovitaminosis manifests itself in rapid fatigue, decreased efficiency, vision in the dark, skin flaking, decreased immunity.

The third condition, characteristic of long-term intake of excess amounts of vitamins, leads to disruption of metabolic processes and body functions. Usually, this condition manifests itself when excess intake of fat-soluble vitamins (for example, A and D). These vitamins are able to accumulate in fat stores.

Vitamin and mineral complexes

Vitamins are complex organic substances that should be applied in a balanced manner, without excess and lack. There are many different options, and in combination with minerals, and separately.

In the modern world, every day there are new data on vitamins and their effect on the living organism. There is an opinion that they are able to improve the internal environment, increase the functional abilities of a person. Therefore, modern dietology considers the intake of vitamins as a means for disease prevention.