This updated encyclopedia examines the basics of nutrition and dieting, presenting the important people, concepts, and criticisms involved and examining the pros and cons of different plans. • Offers a gateway to further study through helpful appendixes, expanded bibliography, and a listing of web resources• Includes a helpful chronology that traces the history of dieting in the United States • Introduces a wide variety of weight loss methods• Contains information on particular diets, support groups, and weight-loss services