(11-05-12) Vitamin d: extraskeletal health.

Holick MF.
Source
Section of Endocrinology, Nutrition, and Diabetes, Department of Medicine, Vitamin D, Skin and Bone Research Laboratory, Boston University School of Medicine, Boston University Medical Center, 85 East Newton Street, M-1013, Boston, MA 02118, USA.
Abstract
Vitamin D deficiency is the most common nutritional deficiency and likely the most common medical condition in the world. The major cause of vitamin D deficiency has been the lack of appreciation that the body requires 5- to 10-fold higher intakes than is currently recommended by health agencies. There is now overwhelming and compelling scientific and epidemiologic data suggesting that the human body requires a blood level 25(OH)D above 30 ng/mL for maximum health. To increase the blood level to the minimum 30 ng/mL requires the ingestion of at least 1000 IU of vitamin D per day for adults. In general, there is no downside to increasing either a child's or adult's vitamin D intake.

Source: Rheum Dis Clin North Am. 2012 Feb;38(1):141-60. Epub 2012 Apr 12.

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