Weight loss surgery

What we do

The obesity epidemic continues to affect patients’ health, quality of life and has a wider impact on the society. Obesity is associated with serious diseases such as cardiovascular disease, diabetes, high blood pressure, high cholesterol, sleep apnoea, osteoarthritis and complications in pregnancy.

For patients who meet the selection criteria, weight loss surgery has proven to be an effective treatment to lose weight and to improve or cure the diseases associated with obesity.

This website is designed to provide you with an understanding of the different surgical weight loss options available at Chelsea and Westminster Hospital.

We hope it will give you a better understanding of what is involved in weight loss surgery, including the benefits and risks, to help you decide which option is best for you and your lifestyle goals.

Chelsea and Westminster Hospital has earned a reputation as a centre of excellence for weight loss surgery—we have been providing this specialised service since the hospital first opened in 1993.

We are a ‘preferred provider’ of weight loss surgery for patients living in London, the South East and East of England, which means that we have been identified by an independent group of experts as one of the best hospitals to carry out this specialist surgery.

Our team

Our service is led by Mr Gianluca Bonanomi who has extensive experience as a surgeon specialising in bariatric and metabolic surgery. He is a member of the American Society of Bariatric Surgery, the International Federation for the Surgery of Obesity and the British Obesity and Metabolic Surgery Society.

Contact information

T: 020 3315 8604
E:  (please note this email address is for non-urgent queries and we will respond within 7 working days)


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