Carol S. Johnston, professor of nutrition and associate dean for faculty success (tenured/tenure-track faculty) in the College of Health Solutions at Arizona State University, teaches undergraduate and graduate courses and has an active research program. She has published 125 research articles and book chapters, and she is often quoted in popular magazines reporting nutrition news. She is an expert in vitamin C metabolism, the medicinal use of vinegar, high protein/low carbohydrate diets for weight loss, and vegetarian diets. She currently chairs the Institutional Review Board at ASU which oversees human subject research at the university. She holds an elected position on an Expert Committee of the U.S. Pharmacopoeia in Washington DC. She has been recognized on multiple occasions for her teaching excellence at ASU, and she has received several national awards from the American College of Nutrition for her professional and academic accomplishments.