Duke & The Doctor began in 1993 as a local program in Columbus, Georgia. Today, Duke & The Doctor is heard in over 125 markets nationwide and is the premier radio program of its kind. The show is hosted by Duke Liberatore, CEO of Peachtree Natural Foods. Peachtree Natural Foods is a rapidly expanding chain of health food stores with a dozen locations in the southeastern United States. Jan McBarron, M.D. is author of The Columbus Nutrition Program, a best selling book about a common sense weight loss formula.