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Article: Questions & answers about vitamin D supplementation.

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Townsend Letter: The Examiner of Alternative Medicine
Article date:
November 1, 2006
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How Much Vitamin D Should I Take?

Before I answer, I have a few questions for you. Where do you live (latitude)? How much do you weigh? What skin type do you have? How much do you go into the sun? How much vitamin D do you get in your diet? How much do you get in supplements? What is your 25-hydroxy-vitamin D level? During what season of the year was it obtained?

You see, the answer is different for everyone. The question also assumes we know the ideal vitamin D blood level. We don't know for sure; around 50ng/ml is the best current guess. However, an easy answer is 2,000 units a day. Life Extension Foundation sells an inexpensive pharmaceutical grade of ...

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