Vitamin D and Fibromyalgia

Research in the journal Clinical Rheumatology (July 19,2006) published online, looked at vitamin D levels in 75 fibromyalgia patients. The subjects filled out two questionnaires—the Fibromyalgia Impact Questionnaire and the Hospital Anxiety and Depression Score (HADS). Vitamin D levels were also tested. A little over 13% of the subjects were deficient in vitamin D, having less than 25 nmol/l, and 56% had low levels (below 50 nmol/l). The subjects who were deficient in vitamin D had lower HADS (median score 31) scores when compared to the group that merely had low levels or normal levels (median scores of 22.5 and 23.5 respectively). There may be an association between low vitamin D levels and the anxiety and depression that accompanies fibromyalgia.

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