In a randomized controlled trial, researchers found that vitamin D supplementation did not reduce pain or slow the progression of knee osteoarthritis.
The media has been all over this recent negative study of vitamin D. However, what the media is neglecting to mention is that the vitamin D dosage used in the study was inadequate to produce meaningful results. The study used a monthly dose rather than a daily dose. In addition, the supplement only contained 50,000 IU of vitamin D3, which is the common amount doctors prescribe for their patients to take weekly.
We will blog on this study soon, but in the meantime, take a look at U.S. News & World Report’s article.