Vitamin D in adult health and disease: a review and guideline statement from Osteoporosis Canada

David A Hanley, Ann Cranney, Glenville Jones, Susan J Whiting, William D Leslie, David E C Cole, Stephanie A Atkinson, Robert G Josse, Sidney Feldman, Gregory A Kline, Cheryl Rosen
Canadian Medical Association Journal: CMAJ 2010 September 7, 182 (12): E610-8
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Jigsaw Natural Health

The ref ranges given are far too conservative to sustain optimal health a) in otherwise healthy individuals & b) in other health conditions.

No mention is made of K2, which is essential to prevent hypercalcaemia. When K2 is supplemented with D3, at a ratio of 100mcg K2 per 10,000 IU D3, no hypercalcaemia occurs, and hypercalcaemia is the event otherwise described by the medical profession as Vitamin D Toxicity. K2 picks up any excess blood calcium and sends it into the bones, including the teeth.


john hadi

Well written!


Manuel Santiesteban

Muy útil revisión de evidencia, aplicable para la práctica clínica.


Romeo Mariano

Vitamin D is a vitamin.
If you have no exposure to sunlight and no animal fat in your diet, you would have a severe deficiency in Vitamin D.

By your argument, you could also argue that Vitamin C is not a vitamin because if not for a single gene defect in humans, humans would be able to manufacture their own Vitamin C just as nearly all mammals do.


Bibi Moore

Thank you for this report. I am not a medical professional but I find your articles very easy to understand and extremely helpful in my planning and implementing my own health care for now and the future.


Scott Woods

vitamin D is Not a vitamin


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