The most important condition for achieving sports success and maintaining health is proper and rational nutrition. It should fully satisfy a person's needs for energy, plastic material, biologically active components and evoke positive emotions in him. It seems very simple - satisfy your needs and you will be healthy and cheerful. But in reality, everything is more complicated: the fact is that the needs for food components change throughout a person's life and depend on a number of factors that make up what is usually called a way of life.