If you’ve been following news about obesity treatments, you may have seen headlines suggesting that fewer bariatric surgery procedures are being performed. At the same time, weight loss medications such as GLP-1 injections have become increasingly well known, leading many people to wonder whether bariatric surgery is still an important treatment option.
Yes. A recent large study published in Obesity Surgery analysed more than one million bariatric procedures carried out between 2020 and 2024 in accredited centres across the United States and Canada. While the study found that the number of procedures declined after reaching a peak in 2022, it also reported something equally important: bariatric surgery continues to demonstrate excellent safety outcomes, even as patients become more medically complex.
Although this research reflects practice in North America rather than the UK, it provides valuable insights into how obesity treatment is evolving worldwide.
What Did the Study Find?
Researchers reviewed over one million bariatric procedures performed over a five-year period to examine trends in surgery and patient outcomes.
Some of the key findings included:
- The number of bariatric procedures declined after peaking in 2022.
- Patients undergoing surgery were increasingly likely to have more complex health conditions, including obstructive sleep apnoea, high cholesterol and a history of blood clots.
- Serious complications became less common during the study period.
- Mortality remained consistently very low.
- Sleeve gastrectomy remained the most commonly performed procedure, while the proportion of gastric bypass procedures increased slightly.
The researchers suggested that several factors may be influencing current practice, including the growing availability of weight loss medications, changes following the COVID-19 pandemic, and ongoing barriers to accessing treatment. However, the study was not designed to determine the exact reasons behind these trends.
Does This Mean Bariatric Surgery Is Becoming Less Effective?
Not at all. The study does not suggest that bariatric surgery has become less effective or less safe. In fact, one of its most reassuring findings is that patient outcomes have remained excellent despite surgeons treating people with increasingly complex medical needs.
Bariatric surgery continues to be recognised internationally as one of the most effective long-term treatments for severe obesity. For many people, it can lead to significant and sustained weight loss while improving or even resolving obesity-related conditions such as type 2 diabetes, high blood pressure and obstructive sleep apnoea.
What About Weight Loss Injections?
Weight-loss medications have transformed obesity treatment and created additional options for many patients.
However, weight loss medication and bariatric surgery are not competing treatments; they often serve different purposes and may even complement one another.
For some people, medication may provide sufficient weight loss and health improvements. For others, particularly those living with severe obesity or multiple obesity-related health conditions, bariatric surgery may offer the greatest long-term benefit.
The most appropriate treatment depends on many factors, including your BMI, medical history, previous weight loss attempts, existing health conditions and personal goals. A specialist assessment is the best way to determine which option is right for you.
What Does This Mean for Patients in the UK?
While this study was carried out in North America, many of the broader messages are relevant to UK patients. Obesity continues to be a significant health challenge across the UK, and bariatric surgery remains an established treatment within both the NHS and private healthcare for appropriately selected patients.
Current UK clinical guidance continues to support bariatric surgery as an effective treatment for eligible individuals when lifestyle measures alone have not achieved sufficient or sustainable weight loss.
As obesity treatment evolves, patients are likely to have more options available than ever before. Rather than viewing medication and surgery as alternatives, healthcare professionals increasingly consider how different treatments can be used to provide personalised care based on each patient’s needs.
Safety Continues to Improve
One of the most encouraging findings from the research is that serious complications became less common over the study period, despite patients presenting with more complex medical conditions.
Modern bariatric surgery benefits from advances in minimally invasive techniques, improved anaesthetic care, enhanced recovery programmes and comprehensive multidisciplinary support before and after surgery.
These developments have contributed to excellent safety outcomes in experienced bariatric centres and continue to improve the patient experience.
Making an Informed Decision
Choosing the right obesity treatment is a personal decision that should always be made in partnership with an experienced healthcare team. Whether you’re considering weight loss medication, bariatric surgery or a combination of approaches, understanding the benefits, risks and long-term commitment involved is essential.
Every patient’s journey is different, which is why a comprehensive assessment and ongoing support remain central to achieving successful long-term outcomes.
Conclusion
Recent research involving more than one million bariatric procedures highlights that obesity treatment is continuing to evolve. While the number of procedures performed changed over the study period, bariatric surgery continues to demonstrate excellent safety outcomes and remains a highly effective treatment option for many people living with severe obesity.
For UK patients, the key message is not that bariatric surgery is becoming less relevant, but that more treatment options are now available. The most suitable approach will always depend on your individual health needs, medical history and long-term goals.
If you’re considering bariatric surgery or would like to understand your treatment options, speaking with an experienced bariatric specialist can help you make an informed decision based on the latest clinical evidence.
Reference
Wills MV, et al. Five-Year Trends in Bariatric Surgery Practice Patterns and Outcomes (2020–2024). Obesity Surgery. Published online 15 July 2026. https://link.springer.com/article/10.1007/s11695-026-08795-y
Medically Reviewed by Lujain Alhassan, BSc, ANutr
Registered Associate Nutritionist and Bariatric Nutrition
