What happens when I stop taking GLP-1s? Will I regain the weight?

Short answer: yes—many people regain some or most of the weight after stopping GLP‑1 receptor agonists. Stopping these drugs commonly leads to return of appetite and metabolic changes, so maintaining weight loss usually requires ongoing treatment or very intensive, sustained lifestyle/behavioral support.

Why that happens

• GLP‑1 drugs (e.g., semaglutide — Wegovy/Ozempic; tirzepatide — Mounjaro/Zepbound) reduce appetite, slow gastric emptying, and change food reward signaling. When the medication is stopped those effects largely reverse, so hunger and food intake tend to increase.
• There is also metabolic adaptation: with weight loss your resting energy expenditure tends to fall, and that lowered energy requirement remains until behavior or biology compensates.
• Clinical trial and real‑world data show people often regain a substantial portion of weight within months to a year after discontinuation unless other measures are maintained.

What you might experience when you stop

• Increased appetite and food cravings.
• Return of prior weight over months (amount varies by person).
• If you have diabetes, stopping can raise blood glucose—monitoring and medication adjustment are important.
• Generally there are no dangerous “withdrawal” effects, but symptoms above can be distressing.

How to reduce the chance of regaining weight

• Don’t stop abruptly without a plan—talk to the clinician who prescribed the drug.
• Continue or intensify lifestyle supports: structured eating plans, regular physical activity, and behavioral therapy (CBT or programs that teach weight‑management skills).
• Work with professionals: an ABOM‑certified obesity medicine physician, a registered dietitian, and a behavioral therapist improve long‑term success.
• Consider alternative or adjunct pharmacotherapy if stopping GLP‑1s is necessary (your doctor might discuss other FDA‑approved weight‑loss meds such as naltrexone/bupropion [Contrave] or orlistat, or switching to another glucose‑lowering regimen if you have diabetes).
• Closely monitor weight and metabolic labs so you can intervene early if regain starts.

Practical next steps

• Discuss with your prescriber before making changes. If you want a specialist, look up an ABOM‑certified physician (American Board of Obesity Medicine directory) or ask your primary care for a referral.
• If you’d like non‑drug supports, consider a structured program or registered dietitian (medical weight‑management clinics, CDC‑recognized Diabetes Prevention Program if relevant, or evidence‑based programs recommended by your clinician).
• Ask your clinician for a discontinuation/transition plan (glucose monitoring plan if diabetic; alternatives if pregnancy planned).

If you want, tell me which GLP‑1 you’re taking, why you want to stop, and whether you have diabetes or other conditions—I can help outline talking points for your doctor and a sample transition plan to discuss.