Adolescence is a difficult period in life. Physical growth and mental development are fast, change voice of boys, girls are beginning to have periods and most adolescents face to public examinations for the first time.
Adolescent development of unusual eating habits and often eat too many food fried, rapid and undesirable.Secondly, the reverse can also be true that social pressures can lead to reduce drastically on food, often without thinking needs nutritionnels.Ces regimes are often deficient protein, minerals and vitamins, and it can have a negative mood and behaviour, as well as physical health effect.
Between the ages of 13 and boys can put up to 9 kg (20 lb) and grow up to 12 cm per year. They need protein to build large muscles that are developed. Very active adolescent boys may consume up to 4,000 calories per day. It is a generous allowance which should easily provide enough minerals and vitamins, but often not as boys avoid often vegetables and whole grain carbohydrates.
Adolescent females earlier, begins the usually occur between the ages of 11 and 16 main growth spurt. They can grow up to 10 cm (4afin) in one year and on up to 8 kg (18 lb). Weight more aware than boys, they usually consume less calories and are therefore more prone to nutritional deficiencies. When their monthly periods start, girls need more iron and calcium and zinc. Irregular, painful periods can be caused by nutritional deficiencies and, although the birth control pill is sometimes prescribed for these problems, it also increases the need for certain nutrients. Daily bread and cheese, wrapped, candy and snack food washed with a soda, is deficient in many vitamins, minerals and possibly even of proteins. Similarly, meal of fast food restaurants usually too contain salt, fat, conservative chemical additives and sugar and fibre, while the protein content may be sufficient.CALCIUM and iron are needed for the croissance.VITAMINE D, which is necessary to allow the body to absorb calcium, is often deficient diet contains no milk.Periods of a girl once started, it has need for iron.CALCIUM, magnesium, vitamins D and K, ZINC, copper, boron and manganese are needed to build strong bones and saines.PHOSPHORE is also required, but it is unlikely that Miss the diet alimentaire.Échec build of bones may increase the risk of osteoporosis in his life.
ZINC, manganese, chromium, selenium are often low in the diet of teenagers that they tend to eat too refined carbohydrates, such as white flour and sugar.
Vitamin C and P may be deficient if insufficient fruit and vegetables are eaten.
B-vitamins can easily fall below the level required in the adolescents.Cela is particularly important for girls, take pills control births and adolescents take antibiotics for acne .ZINC, vitamins A and F, especially the Omega-3 fatty, can help the complexion.
Supplements should not act as substitutes for nutritive.Il food substances in foods that we need, but have not yet identified and they are not included in the supplement.
To avoid food imbalance, minerals and vitamins supplements not usually suitable for high doses.
