Approx. one-third of female adolescents choose diets that are insufficient in calcium, magnesium, iron, zinc, folate, and vitamin A, B6, and E.
Half of peak bone mass is accomplished during adolescence. The greatest capacity to absorb calcium occurs during early adolescence, during this time the body can absorb approx. 4 times more calcium than during young adulthood. This being said, calcium consumption decreases as age increases during adolescence.