b12 deficiency is a major differential dx for ms, kit. I think this means w has discovered that his or her problems stem from a clear and well documented case of b12 deficiency, clear enough to set it apart from the ms dx.
READ ME key info on nutrient targets - www.thisisms.com/ftopict-2489.html
my approach: no meds so far - just nutrient-dense anti-inflammatory whole foods, and supplements where needed
info: www.whfoods.com, www.nutritiondata.com