Tuesday, September 22, 2009

By The Numbers: Vitamin D

0-25 - Level of vitamin D (measured in nanograms per milliliter, or ng/mL) that gives a diagnosis of Vitamin D Deficiency Syndrome, when accompanied by two or more of the following: osteoporosis, heart disease, hypertension, autoimmune diseases, certain cancers, depression, chronic fatigue, or chronic pain.

50 - Minimum acceptable blood level of vitamin D (in ng/mL) for optimal function.

75-125 - Ideal level (in ng/mL) of vitamin D.

200 - Amount of IUs (international units) recommended by the US Food & Drug Administration per day for adults to prevent osteomalacia - not for optimal health.

400 - Amount of IUs recommended by the US Food & Drug Administration per day for children to prevent rickets - again, not for optimal health.

5,000 - Amount of IUs recommended for adults to boost Vitamin D levels by 50 ng/mL within 3 months.

10,000 - Amount of IUs recommended for adults to boost vitamin D levels by 100 ng/mL within 3 months.

20,000 - Average amount of IUs generated by individuals when sunbathing in the summer with maximum skin exposure, for roughly 15 minutes.

156,000–2,604,000 - Amount of IUs a man unknowingly took daily for 2 years, which produced one of the few documented instances of vitamin D toxicity. He recovered with sunblock, steroids, and discontinuing the (poorly measured) vitamin D supplement.

Source:
Vitamin D Council

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