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关于健康人群的膳食锌对铜利用的影响,不同作者研究结果很不一致。本文作者对9名21～27岁健康男学生进行研究共63天,控制膳食中铜的摄入量每天2.6 mg,同时摄入不同量的锌,观察体内锌对铜利用的影响。第一周摄入锌20.7 mg/天,第3、5、6、8和9周为18.5 mg/天,第2周为1.8 mg/天。第4周将受试者分为2组,5人锌的摄入量为1.8 mg/天、4人为8.0 mg/天。第7周分为3组,每组3人,每天给锌4、6或8 mg。受试者在试验期保持正常饮食习惯,每天三餐,膳食中各种营养素均能满足需要,基础膳食中
The effect of dietary zinc on copper utilization in healthy people is very different among authors. In this study, nine healthy male students aged 21-27 years were studied for 63 days. The intake of copper in the diet was controlled at 2.6 mg per day. Different amounts of zinc were consumed at the same time to observe the effect of zinc in the body on the utilization of copper. Zinc 20.7 mg / day in the first week, 18.5 mg / day in the weeks 3, 5, 6, 8 and 9, and 1.8 mg / day in the second week. Subjects were divided into two groups at Week 4, with zinc intake of 1.8 mg / day for 5 persons and 8.0 mg / day for 4 persons. The seventh week was divided into 3 groups of 3 people each day to give zinc 4, 6 or 8 mg. Subjects in the experimental period to maintain normal eating habits, three meals a day, the diet of various nutrients to meet the needs of the basic diet