Quick Biochemistry - Vitamins (Section 1 - No. 28)
The biological activity of one international unit (I.U) of vitamin D is equivalent to how much cholecalciferol?
0.025 µg of cholecalciferol
0.025 µg of 7-dehydrocholecalciferol
0.025 µg of ergosterol
0.025 µg of ergocalciferol