Methylcobalamin, the principal circulating form of B12 and the one transported into peripheral tissues, has been shown to not only reduce homocysteine, but also to reduce inflammatory factors and the volume of carotid artery plaques among stroke patients, as well as pain, and neuropathy among diabetics.5-8 Because of its relationship to myelin production and neurological function, high dose B12 has been used in a variety of neurodegenerative diseases, including Parkinson’s disease, amyotrophic lateral sclerosis, and multiple sclerosis.9–12