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Question vitamin d metabolism

Discussion in 'Diet & Nutrition' started by B49, Jan 3, 2016.

  1. B49

    B49 New Member

    Jan 17, 2015
    Likes Received:
    I wonder how much potent version of vitamin d we can obtain from Cholecalciferol (which is usually called vitamin d, which we are buying as a diet supplement).

    This is a Cholaciferol metabolism:

    Cholecalciferol---->calcifediol (25-hydroxyvitamin D3)---->calcitriol (1,25-dihydroxyvitamin D3)

    Calcitrol is the most potent of vitamin d version and is on top end of its synthesis.

    My question is: If I took once 5000 IU of cholaciferol, how much calcifediol will be made, and how much calcitrol will be made ?
    How long those 5000IU will be floating in my organism (How long will take to metabolise all cholaciferol to calcitrol)?

    Please attach some refferences if you can.

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