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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.

I am confused with the studies that suggest there are no benefits with levels above 30 ng/ml.

Ask the Vitamin D Council

Asked by  rtwohlers47541800 on December 9, 2015


  • rtwohlers47541800
     rtwohlers47541800 on

    See title

    Answered by  rtwohlers47541800 on

  • IAW
     IAW on

    In September 2011 Dr. Cannell wrote a piece titled “Why Should You Keep Your Vitamin D Level Around 50ng/ml? https://www.vitamindcouncil.org/blog/why-should-you-keep-your-vitamin-d-level-around-50-ngml/. “Why should you keep your vitamin D level around 50 ng/ml?” “Four different sources, using four different rationales, and four different lines of reasoning, all lead to the same conclusion”.
    1. Our closest “simian relative” the chimpanzee, has levels between 40 -60 ng/ml (Reinhold Veith)
    2. Lifeguards in summer have 40 -60 ng/ml levels without supplements.
    3. It takes a Mother having a level of between 40 -60ng/ml herself to then have Vitamin D show up in breast milk for her baby. (Professor Bruce Hollis and Carol Wagner)
    4. Humans do not “store” Vitamin D until they reach a level of 40ng/ml. (Professor Robert Heaney)
    Of course since he wrote that there are a lot more studies and information that have shown a higher amount then 30ng/ml is very beneficial and prevents diseased states. The incidence of cancers increase at 30ng/ml and below.
    Does that help?

    Answered by  IAW on