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.
odd sx? no dx? check w/ dietitian
DRI=MINIMUM eg bit.ly/1vgQclQ
99% don't meet these. meds/lifestyle can affect levels
status can be low in ms & other cond'ns
'but my results are normal'. typical panels don't test all
deficits occur in 'normal' range