以往的证据表明:人也需要硒。例如,人红细胞谷胱甘肽过氧化物酶中硒的化学量,就和从各种动物来源得到的酶相同。而且夸希奥科病患儿血硒水平也低,并已报道投予硒可使夸希奥科病患者生长和网状细胞响应。此外,在细胞培养中,硒可增强人成纤维细胞的生长。最后,近期来自于新西兰和中国的报告(下面讨论)表明:对此种元素消耗极低的人群,补充硒是有意义的。1980年,美国国家研究委员会推荐了既 Past evidence shows that people also need selenium. For example, the amount of selenium in human erythrocyte glutathione peroxidase is the same as that obtained from various animal sources. Moreover, the blood selenium level in children with boastocorosis is also low, and selenium administration has been reported to increase the growth and reticular cellular response in patients with boastacco. In addition, selenium can enhance the growth of human fibroblasts in cell culture. Finally, recent reports from New Zealand and China (discussed below) show that it makes sense to supplement selenium for people who consume very little of this element. In 1980, the National Research Council recommended both