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Ieat to live, not live to eat vitamins are nutrients required to maintain vital functions. vitamins are involved in almost all biochemical processes in our body. they are catalysts of metabolic processes and often perform a regulatory function in the body. vitamins are not produced by the body, so they must be obtained from food or vitamin supplements.  in the winter time due to the lack of fresh fruits and vegetables lack of vitamins and mineral micro-and macronutrients is especially urgent. therefore can and should take various vitamin supplements. all vitamin preparations can be divided into two main groups: single-component vtamin supplements and multivitamin preparations.  in order to be healthy you need to eat all but harmful to the body products. no need to eat: chips , sugar , flour , fatty , smoked , salted , drink beer , lemonade. there is a need: cheese, vegetables, stewed meat (beef, lamb, poultry) eggs, milk, porridge on the water with fruit.