I would go with Whole Foods multivitamins over synthetic vitamins. Wheatgrass and Chlorella provide a bunch of vitamins, minerals and amino acids while simultaneosly detoxifying the body. Research those. I use Iodine daily to chelate bromide and flouride(neurotoxin).

Also, I think antioxidant supplementation for neuro-degenerative disorders like this is crucial to halt and reverse disease progression. Polyphenol antioxidants like pomegranate, grape seed, green tea and resveratrol can help. Using Alpha Lipoic Acid if possible and Benfotiamine can be beneficial to many.