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微量元素锌缺乏在人群中很普遍,青少年中尤其突出。普遍认为锌缺乏的原因主要是:①锌的摄入量低,各地儿童膳食调查结果表明,锌摄入量每天在4.8mg~5.7mg,仅达我国营养学会推荐供给量的50%,因此,有必要增加锌的供给。②是锌的生物利用
Trace elemental zinc deficiency is common in the population, especially among adolescents. Generally believed that the main reasons for the lack of zinc: ① low intake of zinc, children around the dietary survey results show that zinc intake per day at 4.8mg ~ 5.7mg, only the Chinese Society of Nutrition recommended supply of 50%, therefore, It is necessary to increase the supply of zinc. ② is the bio-utilization of zinc