GLP-1 medications such as Wegovy and Zepbound usually cost less up front than weight loss surgery. A study presented in 2026 suggests that can change once you count all of a patient's healthcare costs over two years. Here is what it found, who it applies to and what it means for your own costs.

What the study looked at

Researchers led by Dr. Michael Edwards of Mayo Clinic presented the study at the 2026 annual meeting of the American Society for Metabolic and Bariatric Surgery (ASMBS). Using an insurance claims database, they looked at nearly 91,000 adults with type 2 diabetes and a BMI of 35 or more. These patients were treated between 2017 and 2023 with a gastric sleeve, a gastric bypass or at least two years of GLP-1 medication.

Surgery patients were matched with similar patients taking medication. The researchers then compared total healthcare costs over the two years after treatment began, including hospital care, outpatient visits and prescriptions.

What it found

Average total healthcare costs over two years, as published by the ASMBS:

GLP-1 medication: about $58,600.
Gastric bypass: about $51,300, roughly $7,000 less than medication.
Gastric sleeve: about $41,400, roughly $17,000 less than medication.

A later report in General Surgery News gave smaller average savings: about $12,800 for the sleeve and about $4,000 for bypass. Both reports point the same way. Total costs were lower after surgery, and the sleeve showed the largest savings.

Costs with medication were higher for every type of insurance. The biggest difference for the sleeve was in Medicaid patients, at nearly $19,000. Dr. Edwards noted that Medicare and Medicaid patients often face more barriers to care and may rely more on the emergency room, and that these programs have less power to negotiate prices than commercial insurers.

What to keep in mind

It covers one group of patients. Everyone in the study had type 2 diabetes and a BMI of 35 or more. Results may be different for people without diabetes or with a lower BMI.
These are total healthcare costs, not prices. They are not what you would pay for surgery or medication.
Two years is a short window. Medication costs usually continue for as long as you take it, and later costs of either treatment would not show up in the study.
Medication use was a best case. Patients took GLP-1s continuously for two years, which is not what happens for everyone in real life. People who used both surgery and medication were left out.
Prices are changing. The patients were treated between 2017 and 2023, and GLP-1 prices and coverage are changing quickly.
Industry funding. Intuitive Surgical, a company that makes surgical robots, paid for access to the database, and two of the four study authors work for the company.

What it means for your own costs

Your costs depend on your insurance and your health. Without coverage, GLP-1 medications can cost hundreds of dollars or more each month, for as long as you take them. Surgery is a larger, one-time cost, followed by vitamins for life.

Many plans cover weight loss surgery for patients who meet their criteria. If you are paying yourself, our self-pay gastric sleeve starts at $6,999. The starting price rises with BMI and is subject to change, and your exact price is confirmed at your consultation.

Cost is only part of the decision

The right treatment also depends on your health, your goals and how you feel about surgery or long-term medication, and each has its own benefits and risks. Houston Surgical Weight Loss offers both medical weight loss and bariatric surgery. You can also read how they compare on weight loss and long-term results.

Your initial consultation is free. Call 281-653-6544 or request a consultation.

Sources

Edwards M, Wall-Wieler E, Lui Y, Zheng F. Abstract 4339, American Society for Metabolic and Bariatric Surgery annual meeting, 2026. Reported in: ASMBS news release, Study Finds Bariatric Surgery Less Costly Than GLP-1 Drugs Over Time, May 5, 2026, asmbs.org.
From Payer Perspective, Bariatric Surgery More Cost-Effective Than GLP-1s. General Surgery News. September 2026:22.

This article is general information, not medical advice. Talk with your doctor about what is right for you.

GLP-1 Medication vs. Surgery: Which Costs Less?