Quick answer: can you keep weight off after GLP-1 drugs? Trials say it’s hard without continued treatment. After stopping semaglutide, people regained about two-thirds of their lost weight within a year, and after stopping tirzepatide, people regained 14% of their body weight in a year while those who stayed on it kept losing.[1][2] The strategies with the best evidence are staying on a maintenance dose, possibly a lower one, plus strength training and enough protein.
This guide covers what the withdrawal trials found and the practical steps that improve your odds. For the stopping process itself, see stopping GLP-1 medication. Drug details are in our semaglutide and tirzepatide profiles.
What happens to your weight after stopping
| Trial | What was tested | Result |
|---|---|---|
| STEP 1 extension (semaglutide 2.4 mg) | Stopped after 68 weeks; followed 1 year | Lost 17.3%, then regained 11.6 points; net 5.6% below start at week 120[1] |
| STEP 4 (semaglutide 2.4 mg) | After 20 weeks, continue vs switch to placebo for 48 weeks | Continued: further −7.9%. Placebo: +6.9%[3] |
| SURMOUNT-4 (tirzepatide) | After 36 weeks, continue vs switch to placebo for 52 weeks | Continued: further −5.5%. Placebo: +14.0%[2] |
| SURMOUNT-MAINTAIN (tirzepatide) | After 60 weeks, full dose vs 5 mg vs placebo for 52 weeks | Total loss at 112 weeks: −21.9%, −16.6%, −9.9%[4] |
In SURMOUNT-4, 89.5% of people who stayed on tirzepatide kept at least 80% of their weight loss, compared with 16.6% of those switched to placebo.[2]
Weight wasn’t the only thing that returned. In the STEP 1 extension, improvements in blood pressure, blood sugar and other heart-risk markers largely reversed after stopping.[1]
Why the weight comes back
GLP-1 drugs reduce appetite only while they’re active. When the drug clears, which takes several weeks for semaglutide and tirzepatide, hunger and food intake rise again. Your body also defends its previous weight after any large loss. Our explainer on how GLP-1 drugs work covers the biology.
None of this means the medicine “failed.” Many experts now treat obesity like high blood pressure: a chronic condition where stopping treatment usually means the problem returns.
Step-by-step maintenance plan
Work through these with your prescriber. They are ordered roughly by strength of evidence.
- Discuss staying on treatment. Continuing the drug is the only strategy proven in randomized trials to hold most of the weight loss.[2][3]
- Ask about a lower maintenance dose. The Zepbound label lets clinicians pick a lower maintenance dose based on response and tolerability.[7] In SURMOUNT-MAINTAIN, 5 mg held more weight off than placebo, though less than the full dose.[4] See our semaglutide maintenance dose and tirzepatide maintenance dose guides.
- Build a strength routine while you’re still on the drug. A 2025 joint advisory recommends strength training at least 3 times a week plus at least 150 minutes of moderate aerobic activity.[6] In a Danish trial, people who combined liraglutide with exercise weighed 5.1 kg less a year after stopping than those who had taken liraglutide alone.[5]
- Keep protein high. The same advisory notes that 1.2 to 1.6 g of protein per kg of body weight a day has been proposed during active weight loss.[6] Protein plus strength training helps protect muscle, which matters for long-term weight control. Our GLP-1 muscle loss guide explains why.
- Keep the eating habits you built. Smaller portions, regular meals and fewer ultra-processed foods are easier to keep if you practice them during treatment. See the GLP-1 diet guide.
- Weigh yourself regularly and set a trigger. Agree with your clinician in advance on a regain threshold, for example 5% back on, that prompts a visit to restart or adjust treatment.
- Plan for cost and access. If price or a coverage change could interrupt treatment, plan ahead. Our GLP-1 cost without insurance guide covers manufacturer programs.
If you must stop: practical tips
Sometimes stopping isn’t a choice: side effects, pregnancy plans, cost or a shortage. In that case:
- Tell your prescriber before you stop so they can plan a step-down and follow-up. There’s no proven taper, but stepping down may make the transition easier to manage.
- Expect hunger to return over weeks, not days. Semaglutide stays in the blood for about 5 to 7 weeks after the last dose.[8]
- Front-load your habits. Start the strength and protein plan before the last dose, not after.
- Watch for early regain and return to your clinician quickly rather than waiting.
If you’re struggling with low appetite and fatigue rather than wanting to stop, see our GLP-1 side effects hub first. And if you were not losing much weight in the first place, not losing weight on a GLP-1 covers what to check.
Questions to ask your prescriber
Bring these to your next appointment, especially if you’re near your goal weight:
- Based on my health risks, what are the benefits of staying on treatment long term?
- Could I move to a lower maintenance dose, and how would we know if it’s working?
- If I stop, how often should I weigh in, and what amount of regain should prompt a visit?
- Which of my health markers, such as blood pressure, blood sugar or cholesterol, should we recheck after stopping, given that these improvements reversed in trials?[1]
- How much protein and what kind of exercise suit my age and health?
- If cost is the issue, are there manufacturer programs or coverage options I haven’t tried?
Writing down your current weight, waist size and medicines before any change gives you a clear baseline to compare against.
The bottom line
Trials consistently show that most people regain weight after stopping GLP-1 drugs, and that continuing treatment, even at a lower dose, holds most of the loss. Strength training, adequate protein and regular weigh-ins are sensible additions with supporting evidence. Decisions about how long to stay on treatment, and at what dose, belong in a conversation with your clinician.
For the bigger picture, see our topic hub.
