Ralph Green, MD, PhD, has more than 40 years of experience in the field of vitamin B12 research. He has served on panels and expert advisory committees related to his field of expertise, including for the following organizations: American Society of Hematology, FDA, CDC, NHANES, NIH and WHO. He has more than 200 publications, most of which deal with vitamin B12 and the related topics. Dr. Green has conducted research on vitamin B12 in a variety of neurological diseases including multiple sclerosis, Alzheimer’s disease and other neurodegenerative disorders.