Studies of nutrition, energy consumption and population health, conducted in many countries of the world, have shown a significant change in the structure of human nutrition over the past 100 years. At the same time, the consumption of essential nutrients, especially micronutrients and biologically active food components, decreased.
The diet is usually characterized by excessive consumption of animal fats and easily digestible carbohydrates, and at the same time, for the majority of the population, the diet is significantly deficient in the content of polyunsaturated fatty acids (omega-3 and omega-6); soluble and insoluble dietary fiber (pectin, gums, mucus, cellulose, etc.); vitamins; a wide range of vitamin-like substances of natural origin (L — carnitine, ubiquinone, choline, lipoic acid, etc.); macronutrients (calcium, etc.); trace elements (iodine, iron, selenium, zinc, etc.).
Dietary supplements are compositions of natural or identical to natural biologically active substances intended for intake with food or for introduction into food products to enrich the diet with food or biologically active substances and their complexes.