Evidence supporting the need for bariatric surgery to address the obesity epidemic in the United States.

Despite aims at prevention, obesity in the United States is now an epidemic. Along with the rise in obesity, the United States has experienced a concomitant rise in obesity-related comorbidities. Furthermore overweight and obesity present a major economic public health challenge. Physicians are likely to recommend weight loss to their overweight patients. Diet, exercise, and behavior modification are often effective during the course of treatment but are subject to recidivism and post-treatment weight gain. Obesity intervention mandates that providers consider the need for surgery in many cases. The three most commonly performed weight loss surgical procedures in the United States include gastric banding, gastric bypass, and sleeve gastrectomy. Patients undergoing surgery lose considerable amounts of excess weight and experience marked improvement in many other obesity-related comorbidities. Surgery is a proven therapy for patients who do not respond to less invasive measures and should be considered mainstream therapy in the treatment of the obesity epidemic.