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Nutrition plays an important role in the proper course of physiological processes in the body teenagers. good nutrition depends on the normal functioning of the organs and systems of the organism, resistance to various pathogenic factors. with food a teenager should get all the substances which enter into the composition of its organs and tissues. it is proteins, fats, carbohydrates, minerals, salts, vitamins, water. protein – the basic "building material" that is part of every living cell (see proteins). the shortage of protein in the diet of adolescents marked weakness, lethargy, falling weight (see the weight of a person) not keeping pace with growth (see growth), decreased resistance to various diseases. this affects his academic achievement and disability. the most useful protein milk and dairy products, meat, fish and eggs. better digestibility of proteins contribute to the vegetables, why meat and fish dishes it is recommended to give with vegetable side dishes. fats and carbohydrates – energy source, our "fuel". fats enhance the taste of food and give long-term saturation. however, excess fat leads to metabolic disorders and obesity. well absorbed butter, milk fat, eggs, cream, which contains vitamins a and d. bacon, beef and especially mutton fats are poorly digested and contain very few vitamins. students in the food daily, you need to enter 10-15 g of vegetable oil (sunflower, olive, corn). for teenagers of the body necessary mineral substance. with a lack of them can lead to various diseases. for example, when the shortage of food salts of iodine disturbed function of the thyroid gland (see endocrine system). vitamins are involved in all metabolic processes in the body, increase endurance and resistance to various diseases. with a lack of their student is irritable, gets tired quickly, he has reduced working capacity, appetite, growth slowed down. it is very important that children in p. v. received a variety of food. to eat children are 4 times a day, approximately 4-hour intervals. milk and dairy products are especially useful for teenagers because they contain a complete protein, fat, calcium and vitamins. daily teen should drink at least 400 – 500 ml of milk.

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