Experts haven’t agreed on a number that defines a low vitamin D level. For most healthy people, the Office of Dietary Supplements states that a vitamin D serum (blood) level below 20 nanograms per ...
NEW YORK (Reuters Health) - Higher levels of vitamin D in the blood may help protect both men and women from cancers of the colon and rectum, confirm results of the largest study ever conducted on the ...
NEW YORK (Reuters Health) - Low levels of vitamin D appear to increase the risk of death in older adults, researchers report in the Journal of the American Geriatrics Society. Skin produces vitamin D ...
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