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锌是人体内必需的重要微量元素之一,它在人体中的总含量为2～3克。正常人每日锌的需要量是6个月以下3mg,7～12个月5mg,1～10岁10mg,成人15mg,妊娠者每日20mg。微量元素锌对小儿的生长发育、免疫防卫以及某些疾病的发生发展都有很大的影响。2岁以下小儿缺锌患病率较高(约28.5％),在营养不良的小儿中缺锌率达74.68％。锌主要是通过大小便和汗液排出,故多汗者也可造成锌的流失。
Zinc is one of the important trace elements that are essential in human body, and its total content in human body is 2 to 3 grams. Normal daily zinc requirement is less than 6 months 3mg, 7 to 12 months 5mg, 1 to 10 years old 10mg, adult 15mg, pregnancy 20mg daily. Trace elements zinc in children’s growth and development, immune defense and the occurrence of certain diseases have a great impact. The prevalence of zinc deficiency in children under 2 years old is high (about 28.5%), and the rate of zinc deficiency in malnourished children is 74.68%. Zinc is mainly discharged through the urine and sweat, so those who sweat can also cause the loss of zinc.