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本文研究了摄取平衡膳３周的５～６岁学龄前儿童１２名，１９～２１岁成人男１５名，女７名的锌代谢。研究对象的锌营养状态均正常。本试验测定了各对象的膳食锌摄取量，通过大便、尿、全身体表、头发和成年男性精液及成年女性月经锌排出量，也测定了一些有关生化指标。根据中国人的平衡膳食及其膳食结构与饮食习惯，认为成人适宜锌的吸收率为１０％，儿童为２０％。考虑了人体锌代谢平衡理论。本文认为，锌的适宜膳食供给量，每人每日成年男、女和学龄前５～６岁儿童，应分别为１６ｍｇ、１２ｍｇ和８ｍｇ。
In this paper, 12 pre-school children aged 5 to 6 years old and 15 males and 15 females aged 19-21 years old were enrolled in the study. The zinc nutrition status of the subjects were normal. Dietary zinc intake was measured in all subjects. Excretion of zinc from the menstrual fluid of stools, urine, whole body, hair and adult male semen and adult women was also measured. Some biochemical indicators were also determined. According to the balanced diet of Chinese people and their dietary structure and eating habits, it is considered that the zinc absorption rate is 10% for adults and 20% for children. Considered the human body zinc metabolism balance theory. This paper argues that the appropriate dietary supply of zinc per adult daily for men and women and preschool children aged 5 to 6 should be 16mg, 12mg and 8mg respectively.