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1、机体微量元素的安全需要量范围对人体每日需要微量元素的最适宜需要量的研究,是微量元素营养研究的最终目标,是世界性课题,一直在进行探讨。由于每种机体微量元素摄入不足或过剩均对健康有所危害,缺乏与中毒同样与人的生命休戚相关,因此探讨其需要量时,除指出能长时间维持平衡和满足正常机能试验的最低需要量外,同时还应指出需要量的上限(必须是无潜在毒性的量),明确超过最低需要量多少会产生有害作用,从而确定安全需要范围。
1, the scope of the body trace element safety requirements on the daily needs of trace elements in the most appropriate needs of the study, is the ultimate goal of trace nutrient research is a worldwide issue, has been explored. Since insufficient or excessive intake of trace elements in each body is harmful to health, lack of toxicity is also related to human life. Therefore, when discussing its requirement, we should not only point out that it can maintain the balance for a long time and meet the minimum of normal function test The need for extras should also indicate the upper limit of need (which must be a potentially non-toxic amount), specifying how much more than the minimum requirement can have a detrimental effect and thus determining the extent of the need for safety.