30年前即已证实铬是动物机体的必需元素,直到最近几年才确定铬也是人的必需元素。还需要作许多工作来探讨铬参与的全部生理机制,较早的工作确定了铬对糖代谢的影响,最近则强调其对脂质代谢的作用,流行病学研究也提示铬含量与心血管之间存在相关。铬的生物学活性三价铬可形成具有生物活性的有机复合物葡糖耐受因子(GTF)。高效GTF前体物存在于许多食品中并可在体内由无机铬合成,但合成部位和机制不清。经口摄入的无机铬很难吸 Chromium was confirmed 30 years ago as an essential element of the animal body and it has not been established in recent years that chromium is also an essential element of human beings. Much work needs to be done to explore the full physiological mechanisms for chromium participation. Earlier work identified the effects of chromium on glucose metabolism, recently emphasized its role in lipid metabolism, and epidemiological studies have also suggested that chromium levels are associated with cardiovascular There is a correlation between. Chromium biologically active trivalent chromium forms a bioactive organic complex glucose tolerance factor (GTF). Efficient GTF precursors exist in many foods and can be synthesized in vivo from inorganic chromium, but with unclear synthetic sites and mechanisms. Inorganic chromium is not easily absorbed by mouth