Key Takeaways
- A weight loss plateau on a glucagon-like peptide-1 (GLP-1) medicine such as Ozempic or Wegovy is common, and it does not mean you did anything wrong.
- Mayo Clinic notes that a plateau eventually happens to everyone who tries to lose weight.
- As you lose weight, your metabolism slows and your body burns fewer calories, which can slow your progress.
- In a 2025 study of adults with a body mass index (BMI) of 40 or higher, bariatric surgery patients lost about 28% of their body weight after two years, compared with about 10% for patients using GLP-1 medicines.
- Talk with your prescriber before changing your dose, and ask a bariatric surgeon whether surgery could be your next step.
- Atlanta Bariatrics is an expert bariatric surgery practice in Suwanee, GA, serving the greater Atlanta area. Schedule a New Patient Consult or call (770) 232-9252 to explore your options.
Why GLP-1 Weight Loss Often Stalls
GLP-1 is a hormone your gut makes after you eat. It helps control blood sugar and appetite. Medicines such as Ozempic, Wegovy, Mounjaro, and Zepbound copy this hormone to help you feel full sooner and stay full longer. Mounjaro and Zepbound also target a second gut hormone.
For many people, results are strong at first. Then the scale stops moving, even though nothing about the routine has changed. That point is called a plateau.
If you have searched 'why am I not losing weight on Ozempic' or 'Wegovy stopped working,' you are not alone. A plateau does not automatically mean the medicine has stopped working. Your prescriber can review other factors, such as your dose, nutrition, and side effects.
The Metabolism Slowdown Behind a Plateau
Metabolism is the process your body uses to burn calories for energy. According to Mayo Clinic's guide to getting past a weight-loss plateau, your metabolism slows as you lose weight, partly because you lose some muscle along with fat. Your body then burns fewer calories than it did at your heavier weight. Mayo Clinic describes a plateau as the point where the calories you burn match the calories you eat.
Here is what that means for you:
- A smaller body needs fewer calories to run.
- Losing some muscle can slow your metabolism even more.
- The habits that worked at first may now only maintain your weight.
GLP-1 medicines lower your appetite. According to Atlanta Bariatrics, they can be effective but may require continued use to keep results.
A Plateau Is Not a Personal Failure
It is easy to blame yourself when the scale stalls. But Mayo Clinic notes that even people who eat carefully and exercise regularly can hit a plateau.
Here is what that means for you:
- A plateau is biology, not a lack of willpower.
- Following your plan and still stalling is a normal experience.
- Leveling off is a signal to ask what your next step should be.
Surgery also has a leveling-off point. Atlanta Bariatrics shares that most surgery patients settle at their new lower weight between one and two years after surgery. The difference is where that plateau lands.
How Bariatric Surgery Compares With GLP-1 Medicine
GLP-1 medicine lowers appetite through a weekly injection. Surgery changes the digestive system itself. Atlanta Bariatrics notes that surgery typically provides more durable weight loss, especially when paired with nutrition and lifestyle support.
| Factor | GLP-1 Medicine | Bariatric Surgery |
|---|---|---|
| How it works | A weekly injection that lowers appetite while you take it. | Surgery that changes the digestive system, limiting how much you can eat. |
| Average weight loss after two years* | About 10% of body weight | About 28% of body weight |
| Long-term outlook | May require continued use to keep results. | Typically provides more durable weight loss with nutrition and lifestyle support. |
| Who it often fits | People who prefer a non-surgical path. | Adults who meet BMI and health guidelines and want a long-term solution. |
*Results are from an observational study of patients with a BMI of 40 or higher. Individual results vary.
The numbers come from a 2025 study in JAMA Surgery, a medical journal from the American Medical Association. Researchers looked at insurance claims and health records for more than 30,000 adults with obesity. For the weight loss comparison, they used records for patients with a BMI of 40 or higher: 1,291 who had surgery and 257 who took GLP-1 medicines. Average total weight loss after two years was 28.3% with surgery and 10.3% with GLP-1 medicines. Surgery was also linked to lower ongoing costs.
This was an observational study, which means researchers studied what happened to patients instead of assigning treatments. It shows a link, not proof that one treatment caused the difference.
A 2026 review shared at the annual meeting of the American Society for Metabolic and Bariatric Surgery (ASMBS) points the same way. It covered 30 studies and more than 430,000 patients. According to the ASMBS news release on the review, both treatments produced meaningful results, but surgery did better on every outcome measured.
Sleeve Gastrectomy
A sleeve gastrectomy removes a large part of the stomach and leaves a narrow, tube-shaped stomach. You feel full with much less food.
Roux-en-Y Gastric Bypass (RYGB)
A Roux-en-Y gastric bypass (RYGB) creates a small stomach pouch and reroutes part of the small intestine. It limits how much you can eat and changes how your gut signals hunger.
When to Talk to a Surgeon Instead of Adjusting Medication
GLP-1 medicines work well for some people, and a plateau does not mean you did anything wrong. But it may be time to talk with a surgeon if:
- Your weight loss has stalled for months even though you follow your plan.
- You regain weight when your dose is lowered or stopped.
- You have a BMI of 35 or higher, or weight-related health conditions such as type 2 diabetes, high blood pressure, or sleep apnea.
- You want a long-term solution instead of ongoing weekly injections.
- Side effects, costs, or a loss of insurance coverage make it hard to stay on your medicine.
Please talk with your prescriber before you change your dose or stop your medicine. A consultation with a surgeon is a chance to ask questions and learn your options. It does not commit you to surgery. You can also read about long-term weight loss options at Atlanta Bariatrics before your visit.
Hit a GLP-1 Plateau? Explore a Longer-Lasting Option in Suwanee
A GLP-1 plateau is common, and it is not your fault. If your progress has stalled, bariatric surgery may offer a longer-lasting path, and the surgeons at Atlanta Bariatrics can help you decide.
Ready to talk about what comes next? Schedule a New Patient Consult for bariatric surgery with Atlanta Bariatrics or call Atlanta Bariatrics at (770) 232-9252. You can also read about sleeve gastrectomy and Roux-en-Y gastric bypass before your visit.
Frequently Asked Questions
Why am I not losing weight on Ozempic?
Most often, it is a plateau. As you lose weight, your metabolism slows and your body burns fewer calories, so the same routine may no longer lead to more weight loss. A plateau does not automatically mean the medicine has stopped working. Talk with your prescriber, who can review your dose, nutrition, and side effects.
Why did Wegovy stop working for me?
Wegovy may not have stopped working. A plateau eventually happens to everyone who tries to lose weight, including people who take GLP-1 medicines. Do not change or stop your dose on your own. Share your results with your prescriber, and ask whether a surgical option makes sense for you.
What is a GLP-1 plateau, and how long does it last?
A GLP-1 plateau is when weight loss slows or stops even though you keep taking your medicine. How long it lasts is different for each person. Your prescriber can help you decide when it is time to change your plan, and a surgeon can explain other options.
Is bariatric surgery better than GLP-1 medication for weight loss?
In some large studies, bariatric surgery has led to more weight loss than GLP-1 medicines. One 2025 study of patients with a BMI of 40 or higher found about 28% weight loss with surgery and about 10% with medicine after two years. That study was observational, so it shows a link and not proof of cause. The right choice depends on your health, your goals, and your BMI, so a surgeon can help you compare.
Can I have bariatric surgery if I have taken GLP-1 medication?
Yes. Taking a GLP-1 medicine does not rule out surgery. Your surgeon will review your health history, including any medicines you take, to plan the best approach.
Where can I find bariatric surgery in Atlanta?
Atlanta Bariatrics, based in Suwanee, GA, offers bariatric surgery for patients across the greater Atlanta area. Board-certified surgeons Dr. Christopher J. Hart and Dr. William H. Johnson lead the team. You can call (770) 232-9252 or schedule a New Patient Consult online.
