http://articles.mercola.com/sites/articles/archive/2007/01/02/the-sunny-solution-that-slashes-your-multiple-sclerosis-risks.aspxAn analysis of the blood serum of more than 7 million U.S. military personnel, 257 of whom had multiple sclerosis (MS), found that vitamin D is associated with a lower risk of multiple sclerosis. MS cases were identified through physical disability databasesenCommunityServer 2008.5 SP1 (Build: 31106.3070)