Just "D" Facts about Vitamin D

Benefits of Moderate UV Sunshine Exposure

Put Down That Sunscreen

Posted by D3forU on July 16, 2010

Scientists have long known that the incidence of multiple sclerosis, an autoimmune disease, is higher in northern portions of the United States than in the South. Now clues are emerging as to why this regional variation exists.

A key risk factor may be low levels of vitamin D, which is produced naturally when skin is exposed to sunlight. One of the properties of vitamin D is to suppress immune response, so it makes sense that people deficient in this substance may be more prone to suffer from an autoimmune disease.

Investigators confirmed this association using Army and Navy records of physical disability to identify patients with multiple sclerosis and then examined blood samples taken earlier and stored in the Department of Defense Serum Repository.

Munger, K. L., et al. Serum 25-hydroxyvitamin D levels and risk of multiple sclerosis. Journal of the American Medical Association 296:2832-2838 (December 20, 2006)


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