Dr. Terry Wahls is a clinical professor of medicine at the University of Iowa where she teaches internal medicine residents, sees patients in a traumatic brain injury clinic and conducts clinical trials. She is also a patient with secondary progressive multiple sclerosis, which confined her to a tilt-recline wheelchair for four years. Dr. Wahls restored her health using a diet and lifestyle program she designed specifically for her brain and now pedals her bike to work each day as well as teaches the public and medical community about the healing power of intensive nutrition. Dr. Wahls is the author of The Wahls Protocol: How I Beat Progressive MS Using Paleo Principles and Functional Medicine and the paperback, The Wahls Protocol A Radical New Way to Treat All Chronic Autoimmune Conditions Using Paleo Principles. Individuals interested in participating in the study can complete an online questionnaire to determine eligibility by going to https://redcap.icts.uiowa.edu/redcap/surveys and entering code JMJPYEJHP Any questions, contact Cathy Chenard, clinical coordinator: catherine-chenard@uiowa.edu Contact Dr. Wahls: http://terrywahls.com