Maintaining weight after GLP-1: a plan for the first year
Keeping weight off after a GLP-1 medication comes down to three things: a plan for the medication (a maintenance dose or a planned stop), a weekly weigh-in with a set range that tells you when to act, and the habits that hold weight on their own: enough protein, strength training twice a week, daily movement, and meals that keep you full. Trials show weight usually returns when the drug stops and nothing else changes, so the plan has to start before the last dose, not after the scale moves.
This guide covers both paths, how much your appetite pushes back, how to find your new calories, a traffic-light weigh-in system, and a month-by-month plan for the first year.
Why keeping weight off is harder than losing it
Once weight comes off, two forces push it back:
- Appetite rises. A 2016 analysis (Polidori and colleagues) estimated that appetite increases by about 100 calories a day for every kg (2.2 lb) lost, above where it started. That push is several times larger than the drop in calories a smaller body burns, which is why regain is the usual pattern. A GLP-1 holds this back while you take it.
- You burn less. A smaller body burns fewer calories, and lost muscle lowers that a little further. Our guide on metabolism after stopping GLP-1 works through the numbers.
Neither is a lack of willpower. They are why maintenance needs a plan of its own.
Two paths: a maintenance dose or a planned stop
The first decision is about the medication, and it is one to make with your prescriber.
| Staying on a maintenance dose | Stopping | |
|---|---|---|
| What the trials found | STEP 4 (semaglutide): those who kept taking it lost a further 7.9% over 48 weeks. SURMOUNT-4 (tirzepatide): those who stayed on it lost about 5.5% more over a year. | STEP 4: those switched to placebo regained 6.9% of body weight in 48 weeks. STEP 1 extension: about two-thirds of the weight lost came back within a year. SURMOUNT-4: about 14% regained in a year. |
| Doses in the label | Wegovy: 2.4 mg weekly, or 1.7 mg if 2.4 isn't tolerated. Zepbound: 5, 10 or 15 mg weekly. | No taper schedule in either label; some prescribers step down before stopping. |
| Main costs | Price and insurance; side effects; long-term use | Rising appetite; needs strong habits |
| Who often chooses it | People with heart disease, diabetes or a large amount of weight lost | Cost, side effects, pregnancy plans, personal choice |
Some prescribers lower the dose or space injections further apart for maintenance. That use is outside the labelled schedule and the evidence for it is still limited, so it is a conversation for your care team rather than something to try alone. Whatever the path, the habits below matter on both.
What helps people keep weight off
Two kinds of evidence point to the same habits.
Exercise after a GLP-1. In a Danish trial (Lundgren and colleagues, NEJM, 2021), adults who had lost weight on a low-calorie diet were assigned to exercise, liraglutide, both, or neither for a year. Exercise plus the drug kept the most off. In the follow-up a year after everything stopped (Jensen and colleagues, 2024), the groups that had exercised kept more of their loss than the group that took the drug alone.
People who kept weight off. The National Weight Control Registry follows more than 10,000 US adults who lost at least 30 lb and kept it off for a year or more. Most of them report:
- eating breakfast every day (78%)
- weighing themselves at least once a week (75%)
- watching under 10 hours of TV a week (62%)
- exercising about an hour a day on average (90%)
These are self-reports from people who succeeded, not a trial, but the pattern is consistent: regular weighing, regular movement, a steady eating rhythm.
Find your maintenance calories
Your maintenance calories are what you eat when your weight holds steady over weeks. To find them:
- Start with an estimate. An online calculator using the Mifflin-St Jeor equation, your new weight and your activity level gives a starting number. Treat it as a guess.
- Eat close to it for 2–4 weeks. Log roughly, or keep your meals similar day to day.
- Weigh 3–7 mornings a week and look at the weekly average, not single days.
- Adjust by 150–200 calories at a time. Average rising? Take 150–200 off. Still falling? Add 150–200.
If you are coming off the medication, expect to repeat this every 4–6 weeks for the first few months, because appetite and the calories you can comfortably eat both change as the drug clears.
Set a weigh-in range, and know what to do in it
Weight moves 1–3 lb from day to day with water, salt and digestion, so pick a range rather than a single number. Many people use their settled weight plus or minus about 2–3%. A traffic-light system turns the weekly average into an action:
| Weekly average | What it means | What to do |
|---|---|---|
| Green: within 2% of your settled weight | Normal day-to-day change | Carry on |
| Amber: 2–4% over | An early drift | Two weeks of tighter habits: protein at every meal, no grazing after dinner, steps back up, log food for a week |
| Red: over 4%, or amber for a month | A trend, not noise | Book a talk with your prescriber or dietitian; review the medication plan |
These cut-offs are a practical rule, not a clinical standard: agree your own with your prescriber before you stop. A 200 lb person at 4% is 8 lb over; acting at 3–4 lb is much easier than at 20.
The habits that hold weight
Protein at every meal
Protein keeps you fuller per calorie and protects muscle. Aim for 1.2–1.6 g per kg of a healthy reference weight a day, in 3–4 meals of 25–35 g. See your number in our calculator.
Fibre and volume
Vegetables, fruit, beans, lentils and whole grains fill the stomach for few calories. Build toward 25–30 g of fibre a day, slowly, with water.
Strength twice a week, steps every day
Strength training keeps the muscle that keeps your burn up; walking and daily movement burn more than most people expect. A simple target: two full-body strength sessions a week and 7,000–10,000 steps a day. Our guide on strength training after GLP-1 has a plan.
A meal rhythm
Regular meals at set times make hunger easier to read than grazing. Plan the evening, which is when appetite and food noise usually come back first; our guide on hunger after stopping GLP-1 has an evening plan.
Sleep and stress
Short sleep raises hunger and cravings the next day. Aim for 7 hours or more. Notice stress eating and give it a different outlet (a walk, a call, a shower) before it becomes a habit again.
Alcohol
Many people drink less on the medication. If that changes after stopping, alcohol adds calories and lowers restraint around food. Keep it to set days and amounts.
The first year, month by month
| When | Focus |
|---|---|
| 8 weeks before the last dose (or before moving to maintenance) | Start or step up strength training; hit your protein most days; set your weigh-in range with your prescriber |
| Weeks 1–4 after stopping | Appetite starts returning; keep portions the same and add volume (vegetables, soup); weigh 3–7 times a week |
| Weeks 5–12 | Hunger is usually back near normal; find maintenance calories; plan evenings; strength twice a week |
| Months 4–6 | Settle the routine; adjust calories by 150–200 if the average drifts; add weight to your lifts |
| Months 7–12 | Keep the weekly weigh-in; check in with your prescriber at red; a DEXA scan if you want to see muscle vs fat |
For a week of meals in this phase, see the coming off GLP-1 meal plan.
If weight starts coming back
- Look at the last two weeks honestly. The usual causes: larger portions, evening snacking, fewer steps, weekends, alcohol.
- Change one or two things, not everything. Protein-first meals and a closed kitchen after dinner fix most early drift.
- Don't crash diet. Very low calories bring back hunger hard and take muscle with them.
- Talk to your prescriber at red. Going back on the medication, or another treatment, is a medical choice, not a failure. Obesity is a long-term condition, and many people need long-term treatment.
For what the trials found about regain and why it happens, see weight gain after coming off GLP-1.
Common mistakes
- Stopping with no plan, or because a pen ran out, rather than with your prescriber.
- Waiting for the scale. Habits built while the drug still holds appetite back are far easier to keep.
- Dropping strength training once the weight-loss goal is reached.
- Daily weigh-in panic. Use the weekly average.
- Low protein after stopping, when appetite returns for carbohydrate and fat first.
Not sure where your protein and training stand right now? The free 2-minute muscle check gives your daily protein target and what to work on first.
Questions people ask
Can you maintain weight loss after stopping a GLP-1?
Some people do. In the trials, most regained a large share within a year, but those trials didn't add a structured habit plan. Exercise, protein and regular weighing improve the odds.
What is the maintenance dose of Wegovy or Zepbound?
The Wegovy label gives 2.4 mg weekly (1.7 mg if 2.4 isn't tolerated); Zepbound gives 5, 10 or 15 mg weekly. Lower or spaced doses are a decision for your prescriber.
How long does it take for weight to come back after stopping?
In STEP 1, most regain happened over the first 6–12 months. Appetite usually returns within a few weeks of the last dose.
Do I need to count calories to maintain?
Not forever. Logging for a few weeks helps you find your maintenance calories; after that, a weekly weigh-in and steady meals are enough for many people.
How often should I weigh myself during maintenance?
Weekly at least; 3–7 mornings a week gives a better average. Act on the weekly trend, not one day.
Is it normal to gain a few pounds after stopping?
Yes. A small rise from water and food in the gut is common. Watch for a trend over weeks.
Start your maintenance plan with your protein number: the free 2-minute muscle check gives it in grams. More on eating and training on and off weight-loss medication: all our muscle plan guides.
Sources: Rubino D. et al., "Effect of continued weekly subcutaneous semaglutide vs placebo on weight loss maintenance" (STEP 4), JAMA, 2021. Wilding J.P.H. et al., "Weight regain and cardiometabolic effects after withdrawal of semaglutide: the STEP 1 trial extension", Diabetes Obes Metab, 2022. Aronne L.J. et al., "Continued treatment with tirzepatide for maintenance of weight reduction" (SURMOUNT-4), JAMA, 2024. Wegovy and Zepbound US prescribing information (FDA). Polidori D. et al., "How strongly does appetite counter weight loss? Quantification of the feedback control of human energy intake", Obesity, 2016. Lundgren J.R. et al., "Healthy weight loss maintenance with exercise, liraglutide, or both combined", N Engl J Med, 2021. Jensen S.B.K. et al., "Healthy weight loss maintenance with exercise, GLP-1 receptor agonist, or both combined followed by one year without treatment", eClinicalMedicine, 2024. National Weight Control Registry, research findings (nwcr.ws). Mozaffarian D. et al., joint advisory on nutrition for GLP-1 therapy, 2025.