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Weight Loss Surgery London
Book now and receive premium aftercare today.
Speak to our weight loss clinic in LondonWhy use Tonic Weight Loss Surgery London?
London patients are seen on Harley Street in a welcoming, well-run clinic where safety, clarity and comfort come first. From your initial enquiry we set out the options in plain English, confirm suitability and agree a realistic plan for preparation, surgery and recovery. Consultations cover the full range of treatments including gastric sleeve, gastric bypass, mini gastric bypass, gastric band and the swallowable balloon, and we will confirm the most appropriate hospital arrangements when you book.
Getting to us is straightforward whether you are coming from Marylebone, Fitzrovia or the West End. Oxford Circus, Bond Street and Baker Street Underground stations are nearby, with easy connections from Euston, King’s Cross and Paddington. If you prefer to drive, we will share local parking guidance and arrival notes, including information on central London restrictions, so your visit is as simple as possible.
Join thousands of happy London patients
People across the capital choose Tonic for steady, supported change. We hear from patients working around W1 who fit appointments between meetings, from families in North and West London who plan visits around school runs, and from those travelling in from the suburbs who value clear timelines and regular check ins. Their experiences show how a structured pathway and a consistent team can help you get back to day-to-day life with more ease and confidence.
If you are exploring your options, our success stories are a helpful place to begin. Reading how others balanced work, travel and recovery around familiar places such as Regent’s Park, Soho and Marylebone High Street can make the journey feel tangible and help you decide, in your own time, when to talk.
Which Weight Loss Surgery is right for me?
Our London weight loss clinic provide the following procedures:
Gastric sleeve surgery is a leading weight loss procedure that reduces the size of your stomach, helping you feel full sooner and achieve sustainable, long-term results.
Here are the key details on our Gastric Sleeve in London:
- Average recovery time for a gastric sleeve procedure is 7 days.
- Gastric sleeve surgery usually lasts around 60 minutes.
- On average, patients lose between 70% and 75% of their excess weight
- It is performed using five small incisions across the abdomen.
- All gastric sleeve packages include Tonic’s renowned aftercare for complete peace of mind.
Gastric bypass surgery is a highly effective weight loss treatment that reduces stomach size and redirects part of the digestive system to limit calorie intake and absorption.
Here are the key details on our Gastric Bypass in London:
- Recovery time is usually between 10 and 14 days.
- Gastric bypass surgery generally takes about 60 minutes.
- Gastric bypass patients should expect to lose 60-70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s expert aftercare is included with every package.
Gastric band surgery involves placing an adjustable band around the top of the stomach, creating a smaller pouch to help manage appetite and portion control.
Here are the key details on our Gastric Band in London:
- Average recovery time for gastric band procedures is 5 to 7 days.
- The procedure usually takes around 45 minutes.
- Gastric band patients should expect to lose between 50% and 70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Gastric band surgery package!
Mini gastric bypass surgery is a simplified weight loss procedure that reduces stomach size and reroutes part of the intestine.
Here are the key details on our Mini Gastric Bypass in London:
- Average recovery time for our mini gastric bypass procedures is 10 to 14 days.
- Mini Gastric Bypass surgery usually lasts around 70 minutes.
- Mini Gastric Bypass patients should expect to lose between 60% and 70% of their excess weight.
- Surgery is done via five small incisions across the upper abdomen.
- Tonic’s complete aftercare support is included with all procedures
The Allurion Pill Balloon is a non-surgical weight loss treatment involving a swallowable balloon that expands in the stomach to help reduce hunger and calorie intake.
Here are the key details on our Allurion Pill Balloon in London:
- Average recovery time for our Allurion Pill Balloon procedure is between 2 and 3 days.
- The Allurion Pill Balloon procedure has no specific procedure time.
- Allurion Pill Balloon patients should expect to lose around 20% of their excess weight.
- This procedure leaves no scarring.
- Tonic’s premium aftercare is included in our Allurion Pill Balloon procedure package!
Gastric sleeve surgery is a leading weight loss procedure that reduces the size of your stomach, helping you feel full sooner and achieve sustainable, long-term results.
Here are the key details on our Gastric Sleeve in London:
- Average recovery time for a gastric sleeve procedure is 7 days.
- Gastric sleeve surgery usually lasts around 60 minutes.
- On average, patients lose between 70% and 75% of their excess weight
- It is performed using five small incisions across the abdomen.
- All gastric sleeve packages include Tonic’s renowned aftercare for complete peace of mind.
Gastric bypass surgery is a highly effective weight loss treatment that reduces stomach size and redirects part of the digestive system to limit calorie intake and absorption.
Here are the key details on our Gastric Bypass in London:
- Recovery time is usually between 10 and 14 days.
- Gastric bypass surgery generally takes about 60 minutes.
- Gastric bypass patients should expect to lose 60-70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s expert aftercare is included with every package.
Gastric band surgery involves placing an adjustable band around the top of the stomach, creating a smaller pouch to help manage appetite and portion control.
Here are the key details on our Gastric Band in London:
- Average recovery time for gastric band procedures is 5 to 7 days.
- The procedure usually takes around 45 minutes.
- Gastric band patients should expect to lose between 50% and 70% of their excess weight.
- The procedure involves 5 small abdominal incisions across the middle and upper abdomen.
- Tonic’s premium aftercare is included in our Gastric band surgery package!
Mini gastric bypass surgery is a simplified weight loss procedure that reduces stomach size and reroutes part of the intestine.
Here are the key details on our Mini Gastric Bypass in London:
- Average recovery time for our mini gastric bypass procedures is 10 to 14 days.
- Mini Gastric Bypass surgery usually lasts around 70 minutes.
- Mini Gastric Bypass patients should expect to lose between 60% and 70% of their excess weight.
- Surgery is done via five small incisions across the upper abdomen.
- Tonic’s complete aftercare support is included with all procedures
The Allurion Pill Balloon is a non-surgical weight loss treatment involving a swallowable balloon that expands in the stomach to help reduce hunger and calorie intake.
Here are the key details on our Allurion Pill Balloon in London:
- Average recovery time for our Allurion Pill Balloon procedure is between 2 and 3 days.
- The Allurion Pill Balloon procedure has no specific procedure time.
- Allurion Pill Balloon patients should expect to lose around 20% of their excess weight.
- This procedure leaves no scarring.
- Tonic’s premium aftercare is included in our Allurion Pill Balloon procedure package!
Advanced procedures,
world-leading surgeons
Tonic London is a world-leading centre for weight loss surgery, offering the most advanced procedures with a focus on safety, innovation and exceptional outcomes.
We are proud to deliver modern surgical techniques that support faster recovery and long-term success. With a commitment to continual improvement and outstanding care, you can trust you’re in expert hands with Tonic London.
PREMIUM AFTERCARE A TONIC PROMISE
Aftercare and Support like no other
Surgery is one step in a longer plan. In London you receive five years of structured aftercare designed to keep you supported well beyond the day of your procedure. For the first two years you can book unlimited 1-to-1 sessions with a registered dietitian to shape meals, portions and supplements, and unlimited appointments with a psychotherapist to support mindset and behaviour change. A personal trainer and virtual fitness coach help you return to activity safely, while a bariatric nurse is available for clinical questions and practical advice.
Your surgeon provides scheduled follow ups across five years so you always know what comes next. Between appointments you have access to an out of hours support line, the Tonic Tool Kit and our private community for peer encouragement. The aim is simple: clear steps, consistent guidance and a team that stays with you for the long term.
Learn more about our aftercare
Unlimited Dietician Appointments for 2 years
Unlimited Psychotherapist Appointments for 2 years
Unlimited Support with Virtual Fitness Coach for 2 Years
Unlimited Bariatric Nurse Support for 2 years
5 Years Surgeon Follow Up
The Gym Group 30-day Membership
The Tonic Tool Kit
Tonics Private Social Media community support
Out Of Hours Support Line
Hi I'm Cat Bevin
I’m a Tonic Patient Coordinator; I’m here to help you start your weight loss journey
It’s my job to support you through your journey with Tonic, from initial consultation where we’ll learn all about you and your weight loss journey to date, through to your 5 years of aftercare with our specialist team. We’re here for you at every stage.
FAQs
London
All patients receive a 20% discount when you make a parking booking at all Q-Park car parks in London.
All our patient bedrooms are well-equipped with everything you need to make your stay as comfortable as possible, including:
- Electronic patient-controlled bed
- En-suite bathroom
- Air conditioning
- TV and radio with remote control
- Telephone with direct dial facilities
- Nurse call system
- Personal safety deposit box/safe for any valuables, but it’s best to leave anything you don’t need at home
- WiFi internet access is available throughout The London Clinic, and we encourage the use of video calling
We have some mobile devices that you can use if you do not have your own and want to keep in touch with the friends or family.
Even if you are a day case patient we recommend you bring the following:
- Nightwear, dressing gown and slippers.
- If you are staying for a few days, you may also like to bring casual clothing to wear towards the end of your recuperation.
- Personal toiletries (although items such as towels will be provided).
- Books or magazines to read during your stay.
- Any medication you are currently taking in the original labelled containers. (Please pass your medication in its original packaging/bottle to your nurse who will make sure that it is safe for you to carry on taking).
Where diary schedules allow, yes. If not, you will meet a senior clinician and we will arrange a surgeon appointment promptly.
Yes, finance plans are available subject to status. We can provide details once your treatment plan is agreed.
Consultations cover the full range. We will confirm the most appropriate hospital for your procedure as part of your plan.
The UK’s best rated weight loss surgery company.
Life changing stories
The UK’s best rated weight loss surgery company.
Life changing stories
Ally
10 st (64 kg)*
Weight Loss
“I have struggled with my weight all of my adult life, I have PCOS and every diet I have tried just wasn’t successful.
I have lost over 10 stone and I feel absolutely incredible. I would never have dreamt to have the life that I currently have now.”
Paul
10 st (64 kg)*
Weight Loss
“Life before surgery was fake, I had a happy face but was not really happy. I wouldn’t go on lads holidays with my friends or take my kids swimming.
I have lost over 10 stone and it’s been life changing. I have got my life back. I can now take my kids swimming, go on holiday, do those things that I should have done 10,15,20 years ago.”
Danni's
5 1/2 stone (35 KG)*
Weight Loss
“Before I had surgery, I’d always yo-yoed with my weight. I was ashamed because of the size I’d gotten to. I was unable to buy the clothes I wanted to wear. I didn’t feel like the person that I wanted to be nor did my reflection match the person I felt inside.
The surgery with Tonic has absolutely changed my life. I’ve lost 5 and a half stone, and I am more confident and outgoing.
Chanelle
9st (57kg)
Weight Loss
“Before weight loss surgery, I couldn’t cope with doing anything strenuous and I couldn’t spend time with my children in the way I wanted to. My eating was out of control, and I had been yo-yoing.
A year out from surgery, I’m a completely different person. Last year, my body fat percentage was in the morbidly obese category. Now, I’m in the healthy weight category.”
Claire
10 st (64 kg)*
Weight Loss
“I lost 8.5 stone. I feel like one of the gym girls, I have done a 10k this year and I am signed up to Brighton half marathon next year! I chose Tonic because I saw so many success stories online and because of the aftercare package. You have the dietician, the PT, the psychotherapist and the constant support group from others who have had surgery and the team in the office”
