Abstract
Aging is not a disease, it is a physiological process of vital activity of the body as a result of which changes in functional and adaptation balance occur, that is, deviations in terms of health and are mainly the result of changes in cell structure and changes in biochemical and metabolic functions, as well as the prevalence of chronic diseases. One of the significant environmental factors that have a direct impact on the health and life expectancy of older people is rational and complete nutrition. Rational and balanced nutrition in the elderly and senile age affects the development of aging and the characteristic functional abnormalities in the organs and systems of the body. Nutrition in the elderly and senile is expressed by an imbalance of nutrients in the diet, such as protein, vitamins and minerals, which, in turn, can cause alimentary-related diseases. Preventing diseases and increasing life expectancy should be for every individual a credo in life — that is, common rules in life, such as playing sports, defeating stress, eating quality food and drinking water, preventing the appearance and development of diseases.