my 'ms' had a definite diet link. i have documented all my deficiencies with labwork. i corrected them, via diet and supplementation, and i've gotten much better. i don't have relapses. i can correlate nutrients with very specific symptoms. the only new symptoms i've had to deal with since dx turned out to be self inflicted nutrient imbalances because i was learning to supplement properly on my own, and in some cases i`ve been a rather slow learner. like the time it took me a year to figure out that taking magnesium bisglycinate before bed on an empty stomach was giving me that horrific reflux cough that i`m so glad is in the past. i don't do elimination diets, because that's what made me sick in the first place: very strict veganism. i have a diverse whole food diet with limited amouts of things like multi grain bread (made with sprouted flour to reduce gluten content) although i did just come home from an all you can eat pizza pig out with work mates. ì`ll take and extra zinc to make up for all that gluten
i think at this stage that they screwed up my dx of ms, and that what i actually had was subacute combined degeneration
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2467301/ (published after i was dx'd w ms, of course :S...) but that's a whole other discussion.