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Since ancient times, people have understood the great importance of healthy food. The thinkers of antiquity, Hippocrates, Celsus, Galen and others devoted entire treatises medicinal properties of different kinds of food and reasonable consumption. An outstanding scholar of the East Abu Ali Ibn Sina (Avicenna) considered food a source of health, strength and vitality.
I. Mechnikov believed that people grow old and die prematurely due to malnutrition, and that man is rational eating, can live 120-150 years.
Nutrition provides a vital function of the human body, supplying him with the energy necessary to cover the costs of the processes of life.
Update cells and tissues also occurs due to intake of food "plastic" of substances - proteins, fats, carbohydrates, vitamins and mineral salts. Finally the food - the source of the formation of enzymes, hormones and other regulators of metabolism in the body.
In order to maintain the normal flow of energy, plastic and catalytic processes the body needs a certain amount of different nutrients. The nature of power depends on the body's metabolism, structure and function of cells, tissues, organs.
Health and nutrition are closely interrelated. The substances entering the body with food, affect our state of mind, emotions and physical health. The quality of food is largely dependent on our physical activity or inactivity, cheerfulness or dejection.
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