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400IU等于多少克
更新时间: 2020-11-05 00:00:00  

400IU等于0.01克,IU是国际单位,一般的维生素D制剂的剂量都是400IU的,即10微克。也就是400国际单位。

所谓的国际单位(I.U.)是评估维生素A,D两种营养素含量的计量单位。在维生素A方面早期是将0.30微克的视网醇或0.60微克的β-胡萝卜素定义为1国际单位,因为在动物实验中,同量的视网醇与β-胡萝卜素生理活性相较,后者只有前者的一半。

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