Gastric Bypass News and Research

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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

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

Weight loss surgery leads to significant boost in self esteem

Self-esteem scores more than doubled within one year of weight-loss surgery, according to a new study* presented today at the American Society for Metabolic and Bariatric Surgery (ASMBS) 2025 Annual Scientific Meeting.

19 Jun 2025

Bariatric surgery linked to lower risk of psychiatric disorders than GLP-1 drugs

People who have metabolic and bariatric surgery are significantly less likely to develop psychiatric disorders compared to those who take weekly injections of GLP-1 anti-obesity medications, according to a new study presented today at the American Society for Metabolic and Bariatric Surgery (ASMBS) 2025 Annual Scientific Meeting.

17 Jun 2025

Bariatric surgery leads to greater weight loss than GLP-1 drugs after two years

Sleeve gastrectomy and gastric bypass were associated with about five-times more weight loss than weekly injections of GLP-1 receptor agonists semaglutide or tirzepatide, at the end of two years, according to a new head-to-head real-world study presented today at the American Society for Metabolic and Bariatric Surgery (ASMBS) 2025 Annual Scientific Meeting.

17 Jun 2025

Minor complication rates higher among Black patients after bariatric procedures

Black patients are more likely to experience minor complications after metabolic and bariatric surgery than White patients, according to new study presented today at the American Society for Metabolic and Bariatric Surgery 2025 Annual Scientific Meeting.

17 Jun 2025

Higher BMI linked to increased risk of complications after bariatric surgery

The higher a person's body mass index (BMI), the higher their risk for complications after bariatric surgery, especially those with BMI of 50 or more, according to a new study presented today at the American Society for Metabolic and Bariatric Surgery (ASMBS) 2025 Annual Scientific Meeting.

17 Jun 2025

Once-daily oral treatment shows positive results in first human study for obesity treatment

A first-in-human study of an investigational once-daily oral treatment for obesity (SYNT-101) demonstrated positive preliminary data for the safe and effective redirection of nutrient absorption into the lower intestine, the weight loss and metabolic management mechanism behind gastric bypass surgery.

14 May 2025

New Canadian guidelines offer comprehensive approach to managing pediatric obesity

Researchers provide evidence-based recommendations to manage pediatric obesity.

17 Apr 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

How gut microbiota impacts childhood obesity

Gut microbiota plays a critical role in childhood obesity by influencing energy metabolism, inflammation, and appetite regulation, with emerging therapeutic strategies like probiotics, dietary interventions, and fecal microbiota transplantation showing promise.

21 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

MIT engineers develop inflatable gastric balloon for weight loss

Gastric balloons - silicone balloons filled with air or saline and placed in the stomach - can help people lose weight by making them feel too full to overeat.

3 Dec 2024

Understanding the pathophysiological relationship between OSA and metabolic syndrome

Cardiovascular diseases remain a leading cause of mortality globally, particularly among individuals with both obstructive sleep apnea (OSA) and metabolic syndrome (MetS).

27 Nov 2024

Long-term benefits of weight-loss surgery in young people with severe obesity

Young people with severe obesity who underwent weight-loss surgery at age 19 or younger continued to see sustained weight loss and resolution of common obesity-related comorbidities 10 years later, according to results from a large clinical study funded by the National Institutes of Health (NIH).

1 Nov 2024

Cost-effectiveness of combining weight loss drugs and surgery

Newer weight loss drugs are cost effective in the long term only when combined with bariatric weight loss surgery, according to a study presented at the American College of Surgeons (ACS) Clinical Congress 2024 in San Francisco, California.

18 Oct 2024

Weekly injections of anti-obesity medications cost more than surgery

The cost of taking weekly injections of popular anti-obesity medications liraglutide (Saxenda) or semaglutide (Wegovy) exceeds that of metabolic and bariatric surgery in less than a year, according to a recent analysis published in the journal Surgical Endoscopy.

7 Oct 2024

Weight-loss surgery offers better control of high blood pressure compared to medications

People with obesity who underwent weight-loss surgery were more likely to control their high blood pressure over a 1-to-5 year follow-period compared to those who managed their high blood pressure with medications and lifestyle management, according to preliminary research to be presented at the American Heart Association's Hypertension Scientific Sessions 2024.

5 Sep 2024

Archaea: Unseen players in human microbiome and infectious diseases

Archaea, key players in the human microbiome, are linked to various diseases but their pathogenic potential remains speculative. This study highlights their role in conditions like periodontitis and gastrointestinal infections.

16 Jul 2024