
Gastric Bypass surgery is still the gold standard operation, which all the newer operations are compared to.
There are different variations of the gastric bypass, but in common all of them have a small rectangular gastric pouch, approximately 20-30ml in volume made from the upper stomach.
Gastric bypass surgery provides an effective solution for individuals who have struggled with weight loss, helping them regain control and live a healthier, happier life.
In addition to significant weight loss, the procedure encourages the release of beneficial hormones, which help reduce hunger and promote consistent weight loss.
On average, patients can expect to lose 30-35% of their body weight over 9-12 months, leading to long-term, sustainable results.
After a gastric bypass, it becomes challenging to eat quickly or consume large portions, as the surgery reduces the size of your stomach, encouraging smaller meals and a slower pace of eating. Additionally, the surgery alters the gut’s hormone levels which regulate appetite. This hormonal shift reduces feelings of hunger and decreases interest in food, making it easier to maintain a lower calorie intake and support long-term weight loss goals. Eating too much can lead to discomfort and may cause vomiting.
The Gastric Bypass has been designed to support patients with a Body Mass Index (BMI) of 35 or more, with other medical conditions, such as diabetes or high pressure or for someone with a BMI of 40 and above and you can calculate this via our online tool.
To achieve success with any weight loss surgery, including gastric bypass, patients must be committed to following the advice of their clinical team and working hard to make necessary lifestyle changes. However, not everyone is a suitable candidate for the procedure. An initial assessment with a Bariatric Consultant Specialist is required to determine if the Gastric Bypass is the right option for you.
I feel like I’m finally becoming the person I was meant to be..
Rachel lost 17 stone with the Gastric Bypass
What a great team
What a great team ! Very friendly and supportive from Rachel Bennett the Co ordinator to the Surgeon Nick Carter. Plus the aftercare is brilliant can’t fault my experience best thing I’ve ever done.
Date: Jan 7, 2025
Can’t fault the service
Can’t fault the service and aftercare I’ve received and highly recommended them
Date: Jan 3, 2025
Excellent services
Excellent services provided my Shaw Somers and his team, from the initial consult through to aftercare post surgery. Bast decision I ever made and can’t recommend Streamline highly enough.
Date: Jul 13, 2024
Streamline is a leading weight loss provider in the United Kingdom, owned and led by experienced weight loss surgeons Shaw Somers & Guy Slater. With over two decades of dedicated service, we have earned a reputation for excellence in delivering both surgical and non-surgical weight loss solutions. Our commitment to patient care is reflected in our track record of supporting thousands of individuals in achieving their weight loss goals.
At Streamline, we take pride in working exclusively with the most highly rated and skilled surgeons in the country. Whether you are seeking surgical interventions, such as bariatric surgery, or exploring non-surgical options, we ensure that every treatment is tailored to your unique needs.
Throughout the duration of your aftercare, and beyond, we are here to support you on the journey to a healthier you.
Our commitment to you extends beyond your initial aftercare package, which is why we our team are always on hand to provide you with any additional support or advice you need.
Our aftercare packages have been built by specialist bariatric experts to support you for life.
At Streamline, we are proud to offer some of the most competitive prices for gastric bypass surgery in the United Kingdom, with prices starting from £9,950.
We have built different price plan options focussing on a personalised solution, tailored to you and your budget.
You can find out more about our different plans below:
At Streamline, we’ve been proudly supporting our weight loss patients on their weight loss journeys since 2006.
They are an incredible example to others considering taking the next step on their weight loss journey.
At Streamline Weight Loss, we’re proud to offer some of the most competitive gastric bypass surgery prices in the UK, with packages starting from £9,950. This all-inclusive price covers your full pre-operative assessments, the surgery itself, and a personalised aftercare packages to support your long-term success.
Swipe to view aftercare plans >
6 month aftercare packages
2 year aftercare packages
5 year aftercare packages
We are proud to partner with VitalityHealth, the UK’s exclusive private health insurer offering coverage for weight loss surgery.
If you’re a VitalityHealth policyholder, you may be eligible to undergo weight loss surgery at Streamline.
We provide weight loss surgery across a number of locations around the South of England and Birmingham, our team of patient advisors are on hand to help find the most suitable location for you.
Chelsea & Westminster Hospital
369 Fulham Rd, London, United Kingdom, SW10 9NH
The Spire Bushey Hospital
Heathbourne Rd, Bushey WD23 1RD, United Kingdom
The Luton & Dunstable University Hospital
NHS Foundation Trust, The L&D Hospital, Lewsey Rd, Luton LU4 0DZ, United Kingdom
The Berkshire Independent Hospital
Swallows Croft, Wensley Rd, Coley Park, Reading RG1 6UZ, United Kingdom
Chelsfield Park Hospital
Bucks Cross Rd, Chelsfield, Orpington BR6 7RG, United Kingdom
Nuffield Health Guidford Hospital
Stirling Rd, Guildford GU2 7RF, United Kingdom
One Hatfield Hospital
Hatfield Ave, Hatfield AL10 9UA, United Kingdom
BMI Clementine Churchill Hospital
Sudbury Hill, Harrow HA1 3RX, United Kingdom
Spire Portsmouth Hospital
Bartons Rd, Havant PO9 5NP, United Kingdom
Queen Alexandra NHS Trust Hospital
Cosham, Portsmouth PO6 3LY, United Kingdom
As leading weight loss experts in the UK, Streamline only work with the very best surgeons who have extensive experience in performing gastric bypass surgeries with amazing results.
Your questions answered
The gastric bypass reduces appetite meaning most patients feel much less hungry and in some cases may forget to eat this is because the gastric pouch limits food intake and portion sizes become much smaller with an early feeling of fullness which will lead to a restriction in a patients’ calorie intake. There may also be a malabsorption of fat, minerals and vitamins and patients need to take vitamins and minerals each day to prevent deficiencies along with a regular dietetic review.
For most surgeons, a straightforward gastric bypass in a BMI 40kg/m2 woman will take about 90 to 120 minutes, not including the anaesthetic time. A much larger, more difficult BMI 60kg/m2 man, or a revision operation, may take much longer, up to three hours. However, it’s not important how long a patient spends under anaesthetic; it is much more important the surgery is completed carefully to minimise the risk of any complications.
In practice, there are two types of gastric bypass, the original Roux en-Y gastric bypass and the newer one anastomosis gastric bypass, also known as the mini gastric bypass.
At Streamline, we are proud to offer some of the most competitive prices for gastric bypass surgery in the United Kingdom, with prices starting from £9,950.
Most patients take about two weeks to recover after surgery and return to their normal activities including work. During your recovery you should be able to walk around your house and garden and look after yourself.
Start your weight loss journey today