Vitamin D and multiple sclerosis

Women who consume little vitamin D develop multiple sclerosis (MS) at a rate about 50 percent higher than those who get lots of the nutrient, researchers have found. MS is a neurodegenerative disease affecting 350,000 people in the United States.

Previous studies found that many MS patients are deficient in vitamin D, says Kassandra L. Munger, an epidemiologist at the Harvard School of Public Health.