BMI>40 Kg/m2 without medical complications or a BMI > 35 Kg/m2 with significant comorbidities eg.hypertension,diabetes,sleep apnoea,incapacitating osteoarthritis.
Documented failure to keep weight off or to prevent further weight gain using agressive medical management including behavioural,pharmacologic and low calorie diet component.
Willingness to comply with diet and mineral supplements following surgery.
Psychological ability to comprehend the expected dietary changes post surgery to achieve and sustain weight loss.
Adult,non pregnant and absence of addictions or chronic illness unrelated to obesity.