Most potent form of vitamin D is -: (A) Ergocalciferol (Vit. D2), (B) 7 dehydro cholecalciferol, (C) 25 hydroxy cholecalciferol, (D) 1,25 dihydroxy cholecalciferol
Answer is D. Ans. is 'd' i.e., 1,25 dihydroxy cholecalciferol o 1,25 cholecalciferol also k/a calcitriol is active form of Vit. D.o Cholecalciferol in liver continued to 25 hydroxy cholecalciferol.o in kidney 25-Hydroxvcholecalciferol converted into 1,25-Hydroxy cholecalciferol.