Many adults with obesity are looking for effective ways to lose weight and improve their health. New medicines like GLP-1 receptor agonists have become popular because they help people lose weight. However, a major new analysis compares these drugs to bariatric surgery, which is a type of weight loss operation. This research looked at over 20,000 people to see which option works better for long-term weight loss and health markers. The findings offer important clarity for doctors and patients deciding on treatment paths.
The researchers combined data from many different studies to get a clear picture. They looked at adults with obesity who were considering either surgery or taking GLP-1 drugs. The team tracked how much weight people lost at three different times: six months, one year or less, and more than one year. They also checked blood sugar levels, cholesterol, and blood pressure to see how overall health changed.
At six months, the difference between the two treatments was not clear. People on the drugs and those who had surgery lost a similar amount of weight. However, the results changed as time went on. By one year, the surgery group had lost significantly more weight than the drug group. This gap continued to grow. After more than a year, the surgery group lost nearly 20 kilograms more on average than the drug group. This shows that surgery may offer stronger and longer-lasting results for weight reduction.
Beyond just the number on the scale, the surgery group also saw better improvements in blood sugar control. Their HbA1c levels dropped more than the drug group after one year. Fasting glucose levels were also lower in the surgery group. However, there was no significant difference in cholesterol or blood pressure between the two groups. The study did not report specific safety issues or side effects for either group.
The researchers noted that the data came from many different studies, which introduces some variation in how results were measured. This is called heterogeneity. Because of this, the results should be viewed as a strong signal rather than a perfect answer for every single person. The study supports the use of bariatric surgery for selected adults with obesity who need significant weight loss. It does not mean surgery is better for everyone or that drugs are useless.
For patients right now, this means that if surgery is an option and the person is a good candidate, it may provide better long-term weight loss than medication alone. The choice depends on individual health needs, preferences, and what is available. This analysis helps clarify the role of surgery compared to new drugs in the fight against obesity.
