CQC Registered Providers - Rated GOOD
Bariatric Surgery
Private Weight Loss Surgery
Weight Loss Surgery with Allure
Allure Weightloss is a trusted provider of private medical weight loss surgery in the UK. We provide gastric sleeve, gastric bypass, and mini gastric bypass surgery privately throughout the UK and have built up a reputation for our high level of patient care and satisfaction.
Our bariatric surgery procedures are supported by an expert team of consultant surgeons, dietitians, and nurses that will help guide you on your weight loss journey. The average weight loss with bariatric surgery is around 70% of a patient’s excess body weight within the first two years. Most patient’s weight related health problems, such as high blood pressure, diabetes and sleep apnoea, significantly improve after weight loss surgery.
Types of Weight Loss Surgery

Gastric Sleeve Surgery
Requires a Body Mass Index (BMI) of 35 – can be lower if comorbidities present.
A gastric sleeve limits food intake and reduces the production of the hunger hormone, ghrelin, which changes the way that patients feel hunger. Typically performed as a laparoscopic surgery, a gastric sleeve (sleeve gastrectomy) removes around 80% of the stomach to create a tube or sleeve-like structure.
This bariatric surgery permanently makes a smaller stomach and requires a specific diet plan to have a safe and effective recovery. Recovery time takes between 6-8 weeks and typically requires 1-2 weeks off of work.

Gastric Bypass Surgery
Requires a Body Mass Index (BMI) of 35 – can be lower if comorbidities present
A roux-en-y gastric bypass surgery creates a new structure out of the existing stomach to create a small pouch. It bypasses a portion of the stomach in order to reduce the amount of food you can eat at any one time to help you lose weight. It effectively re-plumbs the stomach.
It’s a major operation and should be carefully considered. The expected weight loss is up to 70% of your excess weight within the first two years. Recovery time takes between 6-8 weeks and typically 1-2 weeks off of work.

Mini Gastric Bypass
A mini gastric bypass operation works by reducing the size of the available stomach without removing anything. It relies on a series of alterations to the stomach that can be likened to ‘plumbing.’ It doesn’t cut through the bowel or small intestine, and as such, there is a reduced risk for a hernia and it results in a faster recovery. Recovery time takes between 6-8 weeks and typically requires 1-2 weeks off of work.

Weight Loss Surgery Aftercare
Following your surgery, all patients will receive our renowned aftercare service, which includes two years of contact with your surgeon, nurses, and our HCPC Registered dietitians. They will be with you every step of the way while you’re losing weight after your surgery, helping you to recover, form new eating habits, and introduce physical activity into your day-to-day to help you have a healthier lifestyle.
Advice & Tips

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What is a Gastric Sleeve?
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What is a Roux-en-Y Gastric Bypass?
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Allure Weightloss at Oaklands Hospital
The Oaklands Hospital in Manchester is a leading private hospital that Allure Weightloss are proud to be running clinics out of.
Weight Loss Surgery Clinics
Calculate Your BMI
How is body mass index (BMI) measured?
An individuals BMI is calculated by using the following formula:
BMI = Weight (kg) / Height (m)²
You must take your weight in kilograms, divide it by your height in meters, and then divide it a second time by your height in order to determine the correct body mass index.
Not sure you qualify?
If you still aren’t sure, a member of our team will be able to help. If you are certain you won’t qualify for bariatric surgery, you may still be eligible for other medical weight loss treatments.
BMI Requirements
- Gastric Sleeve – Min. BMI 35
- Gastric Bypass – Min. BMI 40 (or 35 with Comorbidities)

Take the First Step Today
Frequently Asked Questions
You must have a minimum BMI of 35 or a BMI of 30 if you are struggling with existing comorbidities.
Bariatric surgery itself is considered one of the safest surgical procedures to perform, especially due to recent technological advancements in the field.
Typically, patients can look to lose around 65 – 70% of excess weight in the year after surgery.
The Allure Weightloss Bariatric Surgery Aftercare Programme is comprised of access to your consultant, bariatric nurse, and HCPC registered Dietitian for up to 2 years.
With help from our dietitians, you will work on implementing the necessary lifestyle changes to keep it off.
A gastric sleeve, or sleeve gastrectomy, is the process of removing up to 80% of the stomach in order to limit food consumption and reduce hunger hormones. Find out more about our gastric sleeve offerings.
The Roux-en-Y Gastric Bypass involves creating a smaller ‘pouch’ from your stomach and attaching it straight to your intestines, bypassing the main body of your stomach.
The most common risks associated with bariatric surgery include:
- Chronic nausea and vomiting
- Acid reflux
- Inability to eat certain foods
- Obstruction of stomach
- Anesthesia-related risks
- Dilation of esophagus
- Infection
**Please see individual bypass and sleeve pages for the specific complications associated with each procedure**