There is a TED talk from a doctor that was diagnosed with MS and she espouses the virtues of primal eating for MS. She has basically put herself in remission with the primal diet. I know she eats fats, offal, proteins, colorful veggies and fruits. Her kids also eat this way as well. I also personally know a family where a mother and 2 of her 3 adult kids have MS. The mother and daughter(both have MS) both follow a primal lifestyle and the one son who had MS didn't. The son is no longer with us. If I could remember the name of the doctor who did the TED I would post her name. All I know is that the doc is female and has a rather deep voice. I'm sure if you googled it, you could find it. If not, I will look it up when I get home and post it for you. You need to show this to your doctor ASAP.
I was curious about this as I am a child of a parent who had MS. My father basically followed a primal diet growing up and after he left home, he didn't follow it perfectly. I keep thinking the change in diet could have accerbated his problems.