Vitamin D deficiency confirmed as common across a range of rheumatic conditions

ScienceDaily (2010-06-19) -- Two separate studies have shown that vitamin D deficiency is common in patients with a range of rheumatic diseases, with over half of all patients having below the "normal" healthy levels of vitamin D (48-145 nmol/L) in their bodies. A further study assessing response to vitamin D supplementation found that taking the recommended daily dose did not normalize vitamin D levels in rheumatic disease patients.