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Information on the latest vitamin D news and research.

Find out more information on deficiency, supplementation, sun exposure, and how vitamin D relates to your health.

Hello, I've been taking 5,000 IU per day, orally. My serum 25(OH)D3 has fallen, so I've increased to 10,000 IU per day. Is there a formula to work out how quickly my serum 25(OH)D3 levels will go up? Or, failing that, some rule of thumb? Thanks…. Paul

Ask the Vitamin D Council

Asked by  Paul on November 16, 2015

Answers

  • Paul
    Participant
     Paul on

    See title

    Answered by  Paul on

  • IAW
    Participant
     IAW on

    Sorry to say there are no “formulas” or “rule of thumb”.

    Answered by  IAW on

  • Paul
    Participant
     Paul on

    Thanks, IAW.

    Answered by  Paul on