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Vitamin D2 is as effective as vitamin D3 in maintaining concentrations of 25-hydroxyvitamin D
Date:1/2/2008

U of vitamin D2 was found to be effective in the prevention of rickets. Both vitamin D2 and vitamin D3 form 25-hydroxyvitamin D.

Michael Holick, PhD, MD, director of the General Clinical Research Center and professor of medicine, physiology and biophysics at BUSM and senior author of this study, is an internationally recognized expert in vitamin D and skin research. Most recently, he gave the keynote address to the Indian Endocrine Society in India.

The maintenance of the serum 25(OH)D3 levels was most likely due to the release of vitamin D3 stored in the body fat since skin synthesis of vitamin D3 does not occur during the winter in Boston, said Holick, who is also director of the Bone Healthcare Clinic and the vitamin D, Skin and Bone Research Laboratory at Boston University Medical Center.

One thousand IU of vitamin D2 daily was as effective as 1,000 IU of vitamin D3 in maintaining serum 25-hydroxyvitamin D levels and did not negatively influence serum 25-hydroxyvitamin D levels, said Holick. Therefore, vitamin D2 is equally as effective as vitamin D3 in maintaining 25-hydroxyvitamin D status.


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Contact: Michelle Roberts
michelle.roberts@bmc.org
617-638-8491
Boston University
Source:Eurekalert

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