Bariatric Surgery

Bariatric surgery is an option for people who are severely obese and cannot lose weight by traditional means or who suffer from serious obesity-related health problems. The operation promotes weight loss and reduces the risk of type 2 diabetes by restricting food intake.

What is Bariatric Surgery?

Exercise and diet alone often fails to effectively treat people with extreme and excessive obesity. Bariatric surgery is an operation that is performed in order to help such individuals lose weight. Evidence suggests that bariatric surgery may lower death rates for patients with severe obesity, especially when coupled with healthy eating and lifestyle changes after surgery.

Bariatric Surgery Side Effects

Bariatric Surgery Types

Diet After Bariatric Surgery

Weight Loss After Bariatric Surgery

Taste Changes Following Bariatric Surgery

Metabolic Syndrome and Bariatric Surgery

Bariatric Surgery Research

Latest Bariatric Surgery News and Research

AMA endorses resolution to expand access to anti-obesity medications

The American Medical Association (AMA) House of Delegates today passed the Endocrine Society's resolution to improve access to anti-obesity medications.

11 Jun 2025

Tufts researchers design new generation of weight loss medications

Weight loss drugs like Ozempic and Wegovy are used by over 15 million adults in the U.S., or 4.5% of the population. Despite their effectiveness, they have drawbacks.

11 Jun 2025

Fighting weight stigma is key to better mental health outcomes after weight loss surgery

New research shows that weight stigma-and not weight itself-has the biggest impact on mental health and healthy behaviors in the years after weight-loss surgery.

5 Jun 2025

Midlife weight loss may lower your long-term risk of diabetes, study finds

This study shows that midlife weight loss, without medical interventions, reduces chronic disease risk and supports longevity, beyond diabetes benefits.

29 May 2025

Trump won’t force Medicaid to cover GLP-1S for obesity. A few states are doing it anyway.

When Page Campbell's doctor recommended she try an injectable prescription drug called Wegovy to lose weight before scheduling bariatric surgery, she readily agreed.

21 May 2025

Study shows cardiovascular benefits of GLP-1RAs in patients following bariatric surgery

Medications like semaglutide and liraglutide may help to reduce the risk for heart attacks, strokes, and other major adverse cardiovascular events (MACE) as well as death in adults with obesity and diabetes following bariatric surgery who did not achieve sufficient weight loss and diabetes control, according to new research being presented at this year's European Congress on Obesity (ECO) in Malaga, Spain.

12 May 2025

GLP-1RAs show added protection against cancer beyond weight reduction

New research being presented at this year's European Congress on Obesity (ECO) in Malaga, Spain (11-14 May) and published in the journal eClinicalMedicine finds that first generation weight-loss medications like liraglutide and exenatide appear to show anti-cancer benefits beyond weight loss.

11 May 2025

Gastric bypass proven most effective for severe obesity in landmark study

Gastric bypass is the most clinically and cost effective form of interventional surgery for people living with severe obesity, reveals landmark research funded and supported by the National Institute for Health and Care Research (NIHR).

1 Apr 2025

Regaining some weight after bariatric surgery still offers health protection

Having lost a great deal of weight appears to offer some protection against ill health even for those who have regained some of their weight loss.

21 Mar 2025

Scientists uncover hints of a potential new cause of stomach cancer

For the first time, scientists have systematically analyzed somatic mutations in stomach lining tissue to unpick mutational processes, some of which can lead to cancer.

19 Mar 2025

Surgery first strategy could lead to better weight loss outcomes

Mass General Brigham researchers found that total weight loss did not increase for patients who took semaglutide before having weight loss surgery, suggesting that a surgery first strategy could lead to better outcomes.

5 Mar 2025

Europe sets new standards for obesity surgery medical tourism

Obesity surgery (also known as bariatric and metabolic surgery) is one of the most common reasons for people to do so called 'medical tourism' – where they travel to another country to have the procedure carried out at usually a much lower price than in their home country.

19 Feb 2025

Study examines how diet impacts gene expression in fat tissue

As many as 40% of Americans are obese, putting them at an increased risk for high blood pressure, diabetes, stroke, heart disease and certain cancers, according to the CDC.

8 Feb 2025

Bariatric surgery reduces liver complications in obese patients with cirrhosis

A Cleveland Clinic study shows that patients with obesity and fatty liver-related cirrhosis who had bariatric (weight-loss) surgery significantly lowered their future risk of developing serious liver complications compared with patients who received medical therapy alone.

27 Jan 2025

Dapagliflozin plus calorie restriction boosts remission rates in adults with type 2 diabetes and obesity

Findings indicate that dapagliflozin and calorie restriction together improve weight loss and metabolic health, increasing the likelihood of diabetes remission.

24 Jan 2025

Study finds successful treatment of childhood obesity lowers long-term health risks

Effective treatment of childhood obesity significantly lowers long-term health risks, including type 2 diabetes and hypertension, promoting better adult health.

24 Jan 2025

Dapagliflozin and calorie restriction show higher remission rates in type 2 diabetes

Adults with overweight or obesity and type 2 diabetes who are given the sodium glucose cotransporter 2 (SGLT-2) inhibitor drug dapagliflozin alongside moderate calorie restriction achieve much higher rates of remission compared with calorie restriction alone, finds a trial published by The BMJ today.

23 Jan 2025

Why do people with obesity, but without diabetes, start taking semaglutide?

Research identifies key factors affecting semaglutide initiation among obese individuals without diabetes, revealing significant insurance coverage disparities.

22 Jan 2025

Study unravels the links between obesity and cancer

Obesity, recognized as a complex and growing health issue, is associated with an increased risk of various cancers. A comprehensive review provides insights into the mechanisms linking obesity to cancer risk and discusses potential clinical implications.

15 Jan 2025

Unveiling the hidden benefit of bariatric surgery

Welcoming a newborn is something many couples dream of doing, but it can get complicated when conceiving becomes a roadblock. Infertility affects one in six people, but obesity can also be a problem. When diet and exercise aren't enough to lose weight, bariatric surgery can become an option. Yet a new national survey by Orlando Health finds that 56% of Americans do not know that bariatric surgery is an effective way to improve fertility.

14 Jan 2025