The human body receives almost all the necessary substances through food and water. The composition of food and its properties directly affect health, physical development, ability to work, emotional state and overall quality and life expectancy. It is difficult to find another factor that would have such a serious impact on the human body. According to some scientists, physical health is 50% dependent on lifestyle, which includes the nature of human nutrition. Heredity and the state of the environment account for 20%, and only 10% — the level of medical care[1]. All vital functions of the body are connected with nutrition. It is a source of development of tissues and cells, their constant renewal, saturation of a person with energy. Improper nutrition - both excessive and insufficient-can cause significant harm to human health at any age. This is expressed in a decrease in the level of physical and mental development, fatigue, inability to resist the effects of adverse environmental factors, reduced performance and even premature aging and reduced life expectancy.