Mr Ian Calloway, MBBS, FRCS

Mr Ian Calloway is a consultant bariatric and upper gastrointestinal surgeon who specialises in weight-loss surgery, including sleeve gastrectomy and gastric bypass. He reviews the clinical content on The Gastric Sleeve Guide for accuracy, checking that explanations of candidacy, the procedure, its risks, recovery, and long-term outcomes reflect current surgical practice and guidance from bodies such as the American Society for Metabolic and Bariatric Surgery (ASMBS), the British Obesity and Metabolic Surgery Society (BOMSS), NICE, and the NHS.

His review confirms that articles are factually accurate and clearly explained. It is not personal medical advice and does not create a doctor and patient relationship: decisions about weight-loss surgery should always be made with your own surgical team, who can assess you individually and follow you up over the long term.