WLS Explained

What is weight loss surgery?

Surgery is a safe and effective way to tackle obesity and obesity-related health conditions. Gastric surgery has been adapted over 50 years to improve patient safety. While different surgical procedures vary in their methods, the end result is always the restriction of the stomach’s capacity (sometimes including other organs of the digestive system) to retain excess food and absorb nutrients. With a smaller stomach pouch the patient feels fuller after eating much smaller portions of food. 

Weight loss surgery is recognised in medical science for making life-changing improvements to the health of people living with obesity. In particular, Type 2 Diabetes and high blood pressure are potentially life-threatening diseases that can be improved and even reversed with surgey.  

Eligibility for weight loss surgery is subject to a medical criteria. A procedure might be offered to people with a Body Mass Index (BMI) of 40 or more. If your BMI is between 35 and 40 then you can also be recommended for surgery if you have a life-threatening health condition related to obesity.  

Offer weight loss surgery to diabetics, says NICE

Weight loss surgery journey 

Your weight loss surgery journey begins when you decide that surgery is right for you. You will be making a lifelong commitment to change your lifestyle and eating habits to achieve a positive transformation in your health and wellbeing. Having access to specialist information and support in the bariatric community is key to achieving your goals and making your journey successful.

As you begin your research you will discover various procedures come under the term of weight loss surgery. You will need to read carefully about each procedure and consult your GP and surgeon when deciding your best option.  

Types of weight loss surgeries 



Gastric Balloon

Gastric Band

Gastric Sleeve

Mini Gastric Bypass (MGB) 

Roux-en-Y (RNY) Gastric Bypass

Biliopancreatic Diversion With Duodenal Switch (BPD-DS)

Getting started with your research 

If you are thinking of having surgery, begin searching for available information from trusted websites and medical sources. The NHS website provides a general overview of weight loss surgery. you can discover more by comparing the websites of providers and reviewing patient feedback. If you are unsure about something you have read online or have been told about weight loss surgery, please check with your GP and a bariatric specialist. You can also get in touch with The Gastric Guru or send your query to contact@thegastricguru.com. Not all information online has been fact-checked and certified accurate. The best way to get started in your research is to request an initial consultation with your GP. If you are certain that you want to have bariatric surgery, then joining an online forum can be useful in helping you to discover more through the experiences of others who have undergone a procedure or are waiting to have an operation. 

Please seek and follow the specific guidelines from your bariatric team. Guidelines vary for individual patient needs and surgeries.