Evaluation and component analysis of a comprehensive weight control program.

The long-term effectiveness of a four-week comprehensive dietary-behavioral weight control program was evaluated. Program components included a 700 kcal diet, nutritional education, medical and health education, behavior modification, and physical activity and exercise. Mean weight loss 12 months after treatment was 29.2 lb (13.2 kg) with 66 percent of patients losing 20 lb (9.1 kg) or more, 45 percent losing 30 lb (13.6 kg) or more and 29 percent losing 40 lb (18.1 kg) or more. These weight losses are higher than those generally reported for either behavioral or non-behavioral treatments. Comparison of successful versus unsuccessful patients revealed that exercise, cognitive restructuring, eating style, and social skills were most related to success.