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How Do You Get Your Vitamin D?

I'm raising my recommendation of 1,000 IU of vitamin D per day to 2,000 IU per day. Since 2005, when I raised it from 400 to 1,000 IU, clinical evidence has been accumulating to suggest that a higher dose is more appropriate to help maintain optimum health.

Learn more about my reasons for raising my vitamin D dosage recommendation here.

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Reader Comments (3)

I am taking 4800 IU of Vitamin D3 currently, in the form of two 2000 IU gelcaps and two tbsps of cod liver oil and in my multivitamin. I had a score of 48 nm/oL on my last Vitamin D3 test in December. I've read 50 and over is optimal: will 4800 IU be enough to get my Vitamin D3 stores up to optimal level? I am in Seattle.

February 4, 2010 | Unregistered CommenterChristina

Hello, Dr. Weil.

What IS the optimal level of D and does it mater if it is D2 or D3?. My total D (D2+D3) was 9 ng/mL in 2007. After a few weeks of "mega doeses" of D2, it got up to 32 ng/mL. I've been taking 4000 IU of D3 since then. My last report from the Mayo in June 2009 was: 25-Hydroxy D2 at <4.0 ng/mL + 25-Hydroxy D3 at 58 ng/mL = 25-Hydroxy D Total at 58 ng/mL. I know 58 ng/mL is good but is it opitmal? Also, is having basically no D2 okay? I also live in a northern state (Minnesota).

February 9, 2010 | Unregistered CommenterTracy J

Tracy J
Look for results in the normal range, from 30.0 to 74.0 nanograms of 25-hydroxy vitamin D per milliliter (ng/mL) of blood. (Normal value ranges may vary slightly among different labs.) I recommend that everyone take 2,000 IU a day of vitamin D3--says Dr. Weil

February 16, 2010 | Unregistered

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