A few posts here have mentioned the regimen for MS in The Better Brain Book by Perlmutter.
I recently bought the book. I think its a useful reference. In addition to a discussion of key risks/impacts on brain function and how to minimize, it had a good “glossary” explaining the purpose of several key supplements.
The book has sections on specific brain disorders, including MS (others are stroke, vascular dementia, alzheimers, parkinsons, and ALS).