身长和体重一样,在人的一生中有两个时期增长得较快。一是从出生到一周岁;二是青春发育期。在身长、体重增长较快的时期,营养要跟上。据调查,我国青年、儿童较易缺少优质蛋白、钙、维生素B_2、维生素A等营养素。研究证明,缺钙儿童在补充钙后比不补充钙的孩子长得快得多。食品中奶制 Length and weight, like, in the human life, there are two periods of rapid growth. First, from birth to one year of age; second is the puberty. In length, weight gain faster period, nutrition to keep up. According to the survey, young people and children in our country are more likely to lack nutrients such as high-quality protein, calcium, vitamin B_2 and vitamin A. Studies have shown that calcium-deficient children grow much faster after calcium supplementation than children who do not. Milk in food