This is an old thread, but replying just in case it's useful for someone.
I followed a "what works for me" version of Dr. Fuhrman's plan for about a year before the words "MS" were waved anywhere near me. So, for what that's worth in terms of efficacy as an MS fighter...
That being said, it's very close to a lot of the MS diets, depending on which ones you're comparing. The most strict version of it (it's basically a 6-week jump start, after which time you can add in a bit more of the "less desired" foods if you want) tracks pretty closely with the basic premises of a lot of the MS diets, primarily: Loads of whole foods, primarily non-starchy vegetables, fruits and beans/legumes. And very little to no starchy vegetables (like corn), meat, dairy, refined sugars, potato, oils and grains (especially refined grains - if you must eat bread or pasta, make it whole grain). It's basically vegan with some wiggle room for "every now and then" "restricted foods." Meat and dairy wasn't completely restricted, especially once you were done with the 6-week jump start, but it was to be very limited - his whole thing was that meat should be like a condiment, not the main event. (Think maybe some bacon crumbles on your salad, but not a whole steak.)
I think on the whole it's a very complimentary system and I still use it in my daily life. I combine it with the Jelinek plan, which doesn't limit grains, but I do anyway because I think Fuhrman's information about grain risk is solid. About the biggest difference is I've added in much more fish, and I've started eating a bit more bread and a lot more sweet potato because put together, in the absence of grains and potatoes, a mashup of the two diets is quite limiting. And of course, I did not supplement at all, but I do now.
He has a great recipe for a smoothie that I have every morning - a good way to get your greens in at breakfast time. It's basically: 4c baby spinach, 1/2 banana, 2oz vanilla soy milk, 2oz pomegranate juice, 1c frozen fruit of your choice, plus some flax seed, and enough water to thin it out to your taste, all blended up.