Higher levels of 25-hydroxyvitamin D are associated with a lower incidence of multiple sclerosis only in women. Kragt J, VanAmerongen BM, Killestein J, Dijkstra C, Uitdehaag BMJ, Polman CH, Lips P Mult Scler. 2009 Jan; 15(1):9-15. PMID: 18701572. Abstract CommentRecommendBookmarkWatch