动物(包括人)所摄入硒的生物可利用性与硒的形态相关。谷胱甘肽过氧化酶(CSHpx)水平与硒营养状态明显有关,人们通常测定血液 GSHpx 水平作为衡量人与动物缺硒与否的途径。Thomoson,C.D.等报导人的全血硒水平低于0.1μgSe/ml 时,全血 GSHpx 活性与硒水平成线性关系;Rea.H.M.等报导,当人的红血球硒水平低于0.14μgSe/ml 时,全血 The bioavailability of selenium in animals (including humans) is related to the form of selenium. The level of glutathione peroxidase (CSHpx) is significantly related to the nutritional status of selenium. People usually measure the level of blood GSHpx as a measure of selenium deficiency in humans and animals. Thomoson, CD and other reports of human blood selenium levels below 0.1μgSe / ml, the whole blood GSHpx activity and selenium levels into a linear relationship; Rea.HM et al reported that when human red blood cell selenium levels below 0.14μgSe / ml, Whole blood