Abstract
Vitamins are organic compounds necessary for the functioning and normal metabolism of a living organism. They have different chemical structures, and information that people get sick due to a lack of certain substances in nutrients is recorded in ancient Chinese books, and later in the works of Hippocrates. Vitamins are not synthesized in the body; a person receives the necessary vitamins from various nutrients. Hypovitaminosis occurs when there is a lack of vitamins in food, vitamin deficiency occurs when they are completely absent. The main source of vitamins is plants. The biological significance of the vitamin lies in its corrective effect on metabolism. Vitamins enhance the chemical reactions occurring in the body, affect the body's absorption of nutrients, help normal cell growth and development of the entire body, are part of the body's enzymes and ensure their normal function and activity.
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