是人和动物体必需的微量元素之一，锌是人体内200多种酶的组成部分，它直接参与了核酸的合成、几乎所有水平的蛋白质和氨基酸代谢、细胞的分化和增殖以及许多重要的代谢。锌还具有与巯基的亲和力，而巯基是决定蛋白质结构（如酶、膜）的 重要因素。人体内还有一些酶需要锌的激活而发挥其活性作用。鉴于锌参与生物体内几 乎所有的代谢，因此锌缺乏症是非特异性的，可能会有许多并发病症。氨基酸螯合锌被称为第三代微量元素添加剂，是一种绿色有机的新型矿物质元素添加剂。甘胺酸锌（Zinc glycinate）、天门冬氨酸锌（zinc aspartate）、氨基酸锌（zinc amino acid）、牛磺酸锌（zinc taurine）等氨基酸螯合锌有着无机锌无法比拟的优势，比如其生物学效价高、吸收效果好、稳定性强、安全性高和环境友好等优势。

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As one of the essential trace elements in human and animal bodies, zinc is a component of more than 200 enzymes in the human body, and it is directly involved in the synthesis of nucleic acids, almost all levels of protein and amino acid metabolism, cell differentiation and proliferation, and many important metabolism. Zinc also has an affinity with sulfhydryl groups, which are important factors in determining the structure of proteins (such as enzymes and membranes). There are also some enzymes in the body that require the activation of zinc to play its active role. Since zinc is involved in almost all metabolism in living organisms, zinc deficiency is non-specific and may have many co-morbidities. Zinc amino acid chelate is known as the third generation of trace element additive, which is a new type of green organic mineral element additive. Zinc glycinate, zinc aspartate, zinc amino acid, zinc taurine and other amino acid chelated zinc has incomparable advantages of inorganic zinc, such as high biological titer, good absorption effect, strong stability, high safety and environmental friendly advantages.