Gastric Bypass

The Gastric Bypass procedure is most suitable for patients with a BMI of 35 or over and suffering from conditions such as type 2 diabetes or high blood pressure. The procedure involves your surgeon making both your stomach smaller and digestive system shorter. This results in patients losing weight as less food is consumed and absorbed.

A Gastric Bypass provides not only the benefits of significant weight loss, but the majority of patients experience improvement in their type 2 Diabetes symptoms and high blood pressure can be lowered (source BOMSS*).

The package provided by the specialist bariatric team at The Weymouth Street Hospital is different from some other providers in that your procedure is managed and delivered by top London Teaching Hospital  Bariatric Surgeons. We support you fully through your weight loss journey and offer a discreet, caring and personal service. Having weight loss surgery is more than just an operation, it is life changing.

We include the support of a specially trained dietician and psychologist as part of your package with us. The care that they provide along with the surgeon led support are the reasons why so many people recommend our bariatric team.

What our patients say:

I needed to lose weight to restore my health and love for life. I’ve achieved it, and it has been life changing.
Samantha, 29. Patient testimonial 2015*.

Our skilled surgeon’s perform hundreds of bariatric procedures each year and are dedicated to helping our patients meet their weight loss goals.

The Weymouth Street Hospital offers:

  • Some of the most experienced London based consultant surgeons, anaesthetists and nursing teams
  • Excellent care in our central London Hospital
  • State of the art facilities in a discreet and tranquil environment
  • The reassurance of care in a general surgical hospital
  • Fully inclusive and competitive packages with no hidden extras

Our team are amongst the most experienced that Harley Street has to offer. Unlike the commercial clinic chains we offer our services directly to you so there are no sales people involved, just medical professionals dedicated to your care and wellbeing.

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At Weymouth Street Hospital you will never see a sales person and you will meet your surgeon at your first consultation. This ensures that you will only be ever given expert advice from the moment you walk in the door. Our specialist bariatric nurse will speak to you prior to your consultation and ensure you see the right surgeon for you.


* This is a medically supervised weight loss programme. The amount of weight loss achieved is variable and depends on complying with dietary advice and following a healthy lifestyle.

** British Obesity Metabolic Society Clinical papers: Bariatric Surgery in the United Kingdom: A Cohort Study of Weight Loss and Clinical Outcomes in Routine Clinical Care Ian J. Douglas , Krishnan Bhaskaran,Rachel L. Batterham, Liam Smeeth. Published: December 22, 2015

Key Conclusions: Bariatric surgery as delivered in the UK healthcare system is associated with dramatic weight loss, sustained at least 4 y after surgery. This weight loss is accompanied by substantial improvements in pre-existing T2DM and hypertension, as well as a reduced risk of incident T2DM, hypertension, angina, MI, and obstructive sleep apnoea. Widening the availability of bariatric surgery could lead to substantial health benefits for many people who are morbidly obese.

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