Terry Wahls, M.D. is a professor of medicine at the University of Iowa, where she conducts clinical research on the use of diet and lifestyle to treat brain-related problems. She has also worked at the V.A. for many years in the Traumatic Brain Injury Clinic and was the Director of the Therapeutic Lifestyle Clinic. In both clinics, she focused on using diet and lifestyle to treat traumatic brain injury and neurological and neurodegenerative disorders.

She has authored The Wahls Protocol: A Radical New Way to Treat All Chronic Autoimmune Conditions Using Paleo Principles, as well as its companion cookbook, The Wahls Protocol Cooking for Life. Terry also holds her Wahls Protocol® Seminar every August.