Clinical inquiries. Which strategies work best to prevent obesity in adults?

Physical activity and dietary modification work best. Family involvement, regular weight monitoring, and behavior modification also can help. Regular physical activity decreases long-term weight gain. Decreasing fat intake and increasing fruit and vegetable consumption also may decrease weight gain. Combined dietary and physical activity interventions prevent weight gain. Family involvement helps maintain weight. Daily or weekly weight monitoring reduces long-term weight gain. Clinic-based, direct-contact, and Web-based programs that include behavior modification may reduce weight gain in adults. Behavior modification delivered by personal contact is more effective than mail, Internet, or self-directed modification programs.