The prevalence of obesity, defined as a body mass index (BMI) > 30 kg/m2, has been steadily increasing in the United States and worldwide. Increased body mass is associated with an increased incidence of a wide range of medical problems affecting virtually every organ system. Each five-point increase in BMI over 25 kg/m2 is associated with a 30% increase in mortality. Furthermore, obesity also significantly affects quality of life, social functioning, and monetary health. The management of obesity is complex, often requiring an amalgamation of medical, dietary and psychological regimens to...