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 Types

Diet After Bariatric Surgery

Taste Changes Following Bariatric Surgery

Bariatric Surgery Side Effects

Metabolic Syndrome and Bariatric Surgery

Weight Loss After Bariatric Surgery

Bariatric Surgery Research

Latest Bariatric Surgery News and Research

Blood biomarkers forecast long-term blood pressure improvement after adolescent bariatric surgery

A groundbreaking study published in Hypertension, the journal of the American Heart Association, has identified a set of blood-based biomarkers that can predict improvements in blood pressure five years after adolescents underwent metabolic bariatric surgery.

20 Oct 2025

Scientists revive diabetic beta cells, revealing a new path to restore insulin function

Researchers demonstrated that pancreatic β cells from type 2 diabetes donors can partially regain glucose responsiveness when cultured outside the diabetic environment. This recovery, driven by specific gene expression changes, identifies JAK inhibitors as potential therapeutic candidates to restore β-cell function.

14 Oct 2025

Study finds surge in the use of weight loss drugs among bariatric surgery patients

New research findings show a significant increase in the use of weight loss drugs among patients undergoing metabolic and bariatric surgery, signaling an evolution in the management of obesity and Type 2 diabetes.

3 Oct 2025

How much apple cider vinegar reduces weight? Meta-analysis points to 30 mL daily

A new meta-analysis of randomized controlled trials shows apple cider vinegar can modestly but significantly reduce body weight, BMI, and waist circumference in adults, particularly those with obesity or type 2 diabetes.

22 Sep 2025

GLP-1 drugs may offer cost-effective treatment for people with knee osteoarthritis and obesity

A new study led by investigators at Mass General Brigham finds that adding novel weight loss GLP-1 drugs semaglutide and tirzepatide to usual care represents a cost-effective treatment strategy for people with knee osteoarthritis and obesity, with tirzepatide providing greater health benefits at lower cost compared to semaglutide.

16 Sep 2025

Ketogenic diets may lower migraine frequency and medication use

This narrative review argues that the migraine brain is hypometabolic, with converging evidence of mitochondrial dysfunction, impaired glucose handling, neuroinflammation, microbiome shifts, and obesity-related pathways. It proposes ketogenic diets as a plausible preventive strategy that may reduce monthly migraine days and medication use, while emphasizing the need for larger, rigorous randomized trials and careful clinical oversight.

14 Sep 2025

Increasing numbers of bariatric surgery patients turn to GLP-1 drugs

Bariatric surgery is usually effective on its own for weight loss, but an increasing proportion of patients who undergo bariatric surgery start taking one of the new glucagon-like 1 peptide receptor agonist (GLP-1) weight-loss drugs in the years after their surgery, according to a new study led by researchers at the Johns Hopkins Bloomberg School of Public Health.

27 Aug 2025

PFAS exposure increases risk of weight regain after adolescent bariatric surgery

Adolescents who undergo bariatric surgery face a higher risk of weight regain, which can undermine treatment success and long-term health, if they have elevated blood levels of per- and polyfluoroalkyl substances (PFAS) prior to the procedure, according to new USC research.

14 Aug 2025

CRISPR screening uncovers microproteins involved in fat storage

The obesity rate has more than doubled in the last 30 years, affecting more than one billion people worldwide.

7 Aug 2025

Updated multidisciplinary European guidelines redefine MASLD diagnosis and treatment

The 2024 European clinical practice guidelines introduce a pivotal terminology shift, replacing NAFLD (non-alcoholic fatty liver disease) with MASLD (metabolic dysfunction-associated steatotic liver disease) and NASH with MASH (metabolic dysfunction-associated steatohepatitis).

7 Aug 2025

Patients face vitamin deficiencies years after bariatric surgery

A review reveals dangerous vitamin deficiencies post-bariatric surgery, highlighting the need for improved follow-up to prevent life-threatening complications.

30 Jul 2025

Canadian scientists trap gut microbe fuel to improve blood sugar and liver health

A team of Canadian scientists has discovered a surprising new way to improve blood sugar levels and reduce liver damage: by trapping a little-known fuel made by gut bacteria before they wreak havoc on the body.

30 Jul 2025

What happens to your weight after quitting GLP-1 anti-obesity drugs?

Stopping anti-obesity medications leads to significant weight regain, starting as early as eight weeks and stabilizing by six months. Despite this rebound, most patients maintain some weight loss compared to baseline a year after discontinuation.

23 Jul 2025

Chinese study shows lasting weight loss after tirzepatide treatment

Obesity has become a global epidemic, contributing to a host of chronic health conditions such as type 2 diabetes, hypertension, and cardiovascular disease.

23 Jul 2025

Polygenic scores show promise for early obesity prevention

New genetic research reveals polygenic scores can predict obesity risk, offering early prevention insights while raising ethical healthcare access concerns.

23 Jul 2025

Weight regain observed in patients after ending obesity drug treatment

Patients prescribed drugs to help them lose weight may experience a rebound in weight gain after halting their prescription, finds a meta-analysis published in BMC Medicine.

22 Jul 2025

Experts highlight urgent need to regulate bariatric and metabolic surgery medical tourism

Medical tourism for bariatric and weight reduction surgery needs urgent regulation to protect recipients' health, especially as the data show that tourist numbers are increasing despite the advent of weight loss drugs, say experts in a commentary published online in BMJ Global Health.

16 Jul 2025

Extracellular vesicle RNA reveals clues about obesity and metabolic disease

Our study examines how RNA in extracellular vesicles (EVs) can provide insights into metabolic phenotypes related to obesity. By using functional genomics approaches, we found a high representation of genes and regulatory elements previously associated with obesity and type 2 diabetes represented by the RNA cargo within these EVs.

15 Jul 2025

Weight loss drugs can boost testosterone in men with obesity or diabetes

Anti-obesity medications can significantly raise testosterone levels and improve health outcomes for men with obesity or type 2 diabetes, according to a new study being presented Monday at ENDO 2025, the Endocrine Society's annual meeting in San Francisco, Calif.

14 Jul 2025

Weight loss wipes out senescent fat cells but leaves immune scars, study finds

Researchers have mapped human fat tissue at single-cell resolution, uncovering how obesity alters cellular stress, inflammation, and tissue structure. Weight loss reverses much of this damage, especially senescence in fat and vascular cells, but leaves some immune dysfunction behind.

10 Jul 2025

Bariatric Surgery

Overview

Bariatric Surgery Types

Diet After Bariatric Surgery

Taste Changes Following Bariatric Surgery

Feature Articles

Bariatric Surgery Side Effects

Metabolic Syndrome and Bariatric Surgery

Weight Loss After Bariatric Surgery

Bariatric Surgery Research

Latest Bariatric Surgery News and Research

Blood biomarkers forecast long-term blood pressure improvement after adolescent bariatric surgery

Scientists revive diabetic beta cells, revealing a new path to restore insulin function

Study finds surge in the use of weight loss drugs among bariatric surgery patients

How much apple cider vinegar reduces weight? Meta-analysis points to 30 mL daily

GLP-1 drugs may offer cost-effective treatment for people with knee osteoarthritis and obesity

Ketogenic diets may lower migraine frequency and medication use

Increasing numbers of bariatric surgery patients turn to GLP-1 drugs

PFAS exposure increases risk of weight regain after adolescent bariatric surgery

CRISPR screening uncovers microproteins involved in fat storage

Updated multidisciplinary European guidelines redefine MASLD diagnosis and treatment

Patients face vitamin deficiencies years after bariatric surgery

Canadian scientists trap gut microbe fuel to improve blood sugar and liver health

What happens to your weight after quitting GLP-1 anti-obesity drugs?

Chinese study shows lasting weight loss after tirzepatide treatment

Polygenic scores show promise for early obesity prevention

Weight regain observed in patients after ending obesity drug treatment

Experts highlight urgent need to regulate bariatric and metabolic surgery medical tourism

Extracellular vesicle RNA reveals clues about obesity and metabolic disease

Weight loss drugs can boost testosterone in men with obesity or diabetes

Weight loss wipes out senescent fat cells but leaves immune scars, study finds

The future of automation: Machine learning–driven hepatocyte and organoid counting

From street to lab: Advancing controlled substance testing with handheld Raman and FTIR

Reimagining light scattering for biotherapeutics

Bariatric Surgery

Overview

Feature Articles

Bariatric Surgery Side Effects

Metabolic Syndrome and Bariatric Surgery

Weight Loss After Bariatric Surgery

Bariatric Surgery Research

Latest Bariatric Surgery News and Research

The future of automation: Machine learning–driven hepatocyte and organoid counting

From street to lab: Advancing controlled substance testing with handheld Raman and FTIR

Reimagining light scattering for biotherapeutics

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