Semaglutide's rise does not threaten bariatric surgery—complementary roles for different patient populations | Research

The takeaway

While semaglutide has transformed obesity treatment, bariatric surgery remains superior for severe obesity, with semaglutide serving complementary roles in pre-surgical weight optimization, post-surgical weight regain rescue, and maintenance.

Complementary, not competitive
Semaglutide and bariatric surgery serve different roles: drugs for moderate obesity and surgical support, surgery for severe obesity—both needed in comprehensive care

What the researchers found

Semaglutide: effective but does not replace bariatric surgery for severe obesity. Complementary roles: pre-op weight loss, post-op regain rescue, weight maintenance. Surgery: still superior for severe obesity, diabetes remission, mechanical benefits.

Why it matters

Clarifying that semaglutide and surgery serve complementary rather than competitive roles helps clinicians and patients make informed treatment decisions.

How the study worked

Perspective/opinion article on semaglutide vs bariatric surgery roles.

What this study cannot tell us

Opinion piece. Does not include primary data. Perspective may be influenced by surgical specialty viewpoint.

How to read the evidence

Perspective/opinion article without primary data.

When this study was published

Published in 2025.

The bigger picture

The obesity treatment paradigm is evolving from "either/or" to "and." Integrating pharmacotherapy and surgery provides the most comprehensive approach to the obesity epidemic.

Questions still open

At what BMI does surgery become preferred over pharmacotherapy?
Could combining semaglutide with surgery improve long-term outcomes?
Will tirzepatide or retatrutide narrow the surgery advantage further?

Common questions

Is semaglutide replacing bariatric surgery?

No. While semaglutide is effective for weight loss, bariatric surgery still achieves greater weight reduction for severely obese patients. The two treatments work best together: semaglutide can help patients prepare for surgery, manage weight regain after surgery, and provide ongoing maintenance.

When should I choose surgery over semaglutide?

For severe obesity (BMI ≥40, or ≥35 with health complications), surgery generally produces more weight loss and higher rates of diabetes remission. Semaglutide is often preferred for moderate obesity or when surgery is not desired or appropriate. Many patients benefit from using both at different stages.

Read the original research

Is Bariatric Surgery at Risk Due to Semaglutide?

Journal of metabolic and bariatric surgery, 14(3), 202-209

View on PubMed ↗Publisher’s paper ↗

Citation

Tian, Jane; Bhatia, Shubham; Sneed, Christina; Kiarie, Patrick; Fuchs, Mikayla; Miele, Andrew; Shah, Darshak; Khan, Noman; Louis, Martine A. (2025). Is Bariatric Surgery at Risk Due to Semaglutide?. Journal of metabolic and bariatric surgery, 14(3), 202-209. https://doi.org/10.17476/jmbs.2025.14.3.202