What makes calcitrol different from vit d?

Form: Calcitriol is the active form of vitamin d which your body can make if provided with an adequate supply of vitamin d2 or d3. D2 and d3, found in food, first undergo conversion into calcidiol, the storage form of vitamin d. As needed, your body will transform calcidiol into calcitriol, the active essential form of vitamin d needed for positive effects.

Active Form of Vit D: Calcitrol is the active form of VitD.It does not exist in food,but your body can make it if you get adequate supply of VitD2 or D3.The food form nutrients first undergo conversion into Calcidiol,the storage form of VitD.And whever required by the body,it will alter into Calcitrol.This compound called Calcitrol is responsible for the range of positive effects associated with VitaminD