Pain-free with vitamin D?

If you are female and among the 10 percent of the U.S. population that suffers from chronic widespread pain, such as that associated with fibromyalgia, getting the right amount of vitamin D may help. In a new study published in the Annals of Rheumatic Diseases, researchers measured the vitamin D levels of almost 7,000 subjects and recorded information about their bodily pain. The researchers found that the correlation …