Free Weight Loss Consultation on Harley Street – Call us on 0800 3134618

Weight Loss Surgery

Gastric Seeve in London

We work at several locations in London including on Harley Street, at the heart of London’s prestigious medical district

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Over 20 years experience in bariatric surgery
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5 Years Comprehensive After Care Package
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Lifelong psychological and nutritional support
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Over 2700 Sleeve procedures completed

Healthier Weight at the heart of London's medical district

We’re proud to work with some of the world’s best bariatric specialists in the centre of London’s prestigious medical district. Here on Harley Street, we work with one of the pioneers of the gastric sleeve, Mr John Loy. 

The Gastric Sleeve at a Glance

The gastric sleeve is now the UK’s most popular weight loss surgery procedure. At Healthier Weight, we change hundreds of lives every year with gastric sleeve surgery. 

The Gastric Sleeve

The gastric sleeve is now the UK’s most popular weight loss surgery procedure. At Healthier Weight, we change hundreds of lives every year with gastric sleeve surgery. 

Our London Clinics

We have a number of premium locations within the London area including two state of the art hospitals located within the prestigious Harley Street medical district. 

Local Weight Loss Surgeons

Mr Jamie Kelly, – 4258632 has a specialist interest in laparoscopic and minimal access surgery. This is demonstrated in his approach and personal development of weight loss surgery. He has received extensive obesity training in the UK and abroad, specialising in gastric banding, gastric bypass, sleeve gastrectomy and revisional procedures.

Local Weight Loss Surgeons

Mr John Loy GMC – 6053450 is our specialist at the Circle Health Group London Independent Hospital in central London. Consultations and a range of weight loss procedures are available at this location.

Local Weight Loss Surgeon

Mr Paul Super, – 3182365 is a highly experienced surgeon, performing over 400 laparoscopic gastric band operations each year. He is one of the most prolific band surgeons in the world with over 10,000 procedures undertaken.

Meet your London aftercare team


Jo Whitehouse

Specialist Bariatric Nurse

Jo joined Healthier Weight in 2014 having qualified in 1996 at the University of Wolverhampton gaining a Diploma of Higher Education in Nursing Studies.

Jo has gained almost 21 years’ experience in caring for surgical patients within a wide range of specialities both in the private and National Health sectors. Jo has been specialising in bariatric surgery since 2011.

Yasmin Sarfraz

Senior Bariatric Nurse Practitioner

Yasmin joined Healthier Weight in 2011 having qualified in 2010. Yasmin qualified at Birmingham City University gaining distinction in the Adult Nursing Diploma.

Throughout her nursing career, Yasmin has gained experience in many areas of speciality, including intensive care, cardiac medicine and military trauma. Yasmin has been specialising in bariatric surgery since 2011.

Weight Loss Surgery FAQ's

We have a variety of clinics around greater London, including Central London, Watford and Hertfordshire 

The gastric sleeve (laparoscopic sleeve gastrectomy) is the world’s fastest-growing weight loss procedure, surpassing gastric band and bypass surgeries in NHS popularity. This simple concept involves laparoscopic access, cutting and removing about 80% of the stomach.

Post-surgery, food follows the same path, but with a significantly smaller stomach. The sleeve facilitates weight loss by reducing stomach capacity and altering gut hormones (ghrelin and GLP-1), suppressing appetite.

Notably, excess body weight loss is rapid, and it’s crucial to understand that weight loss isn’t directly tied to the remaining stomach size; gut hormone changes drive effective weight loss in both ‘tight’ and ‘loose’ sleeves.

Most sleeve patients will stay in a hospital for 1 night before going home. You should start to feel much more comfortable around 2 weeks after surgery, but it typically takes around 6 to 8 weeks for your stomach to heal completely.

On average we expect weight loss results for gastric sleeve patients to be approx 60-70% of their excess weight during the first two years, although most of the weight is lost during the first year. Some people will inevitably do better than this, and some not so well.

Meet Laura,
A Patient Care Coordinator at Healthier Weight

My role is to support you with starting your weight-loss journey with Healthier Weight. During our conversation, we will explore the choices available to you and address any questions and concerns you may have. When you feel ready to move forward, we will arrange a free, no obligation consultation with one of our surgeons.

Complete the form below to receive your free personalised quote today.


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