These criteria are the standard by which most bariatric surgeons assess appropriateness for weight loss surgery:

• BMI over 40 or 35 – 39 with at least 2 significant co-morbidities
• Failed diets and other non-surgical attempts at weight loss
• No contraindications to surgery (terminal cancer etc)
• Ability to comprehend and provide informed consent
• Willing to commit to long term follow-up