My wife is a whole foods vitamin nut. One of her papers has that taking b6 b12, frlic acid, and thiamine(b1) are important to the structural integrity of the fats found in the myelin. Alpa lipoic acid is an approved treatment for polyneuropathies in Germany. Supposebly that one of alpha lipoic acids positive actions is its ability to stimulate the regeneration of nerve fibers. Another nutient is acetyl l-carnitine.
I dont know about this stuff . I just copied some papers of my wifes.