Food—buying it, cooking it, relishing it—is central to The Life Long Weigh. Karen Hill, M.D., and her team of registered dieticians anchor their weight-loss and detoxification programs in diets of whole foods. During tours of grocery stores, they holler about the benefits of certain grains, vegetables, and other natural ingredients. Cooking classes teach students how to pack vegan meals with protein and prepare satisfying desserts without loads of sugar. Dr. Hill's weight-loss programs also include group meetings and behavioral therapy to motivate clients to follow through on their new diets.