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微量元素是指那些在人的体重中含量百万分之五十以下的元素。大部分人体必需的微量元素是人体健康、生长发育必不可少的营养素。它对人体的主要作用是:①参与物质代谢中各种酶的组成;②为酶的激活剂,促进体内物质代谢的顺利进行。所有的微量元素都不能在体内合成,完全依赖于从
Trace elements are those that contain less than 50 parts per million of a person’s body weight. Most of the trace elements necessary for the human body is essential nutrients for human health and growth and development. Its main role on the human body are: ① involved in the composition of various enzymes in the metabolism; ② as an activator of enzymes to promote the smooth progress of the body’s metabolism. All trace elements can not be synthesized in the body, completely dependent on