How to Maintain Weight Loss After Ozempic, Wegovy or Mounjaro

Keeping weight off after Ozempic, Wegovy or Mounjaro is a different job from losing it. The medication was quietly doing part of the work by turning your appetite down, and when it stops, that part has to be done another way. Most people regain some weight, but how much is not fixed. The research on people who keep weight off points to the same few things: habits built before you stop, protein at every meal, more movement than you did while losing, and weighing often enough to catch regain while it's small. Here's the plan, step by step.

Why maintenance needs its own plan

Regain after stopping is the expected pattern, not bad luck. In the STEP 1 extension, people regained about two-thirds of the weight they had lost in the year after stopping semaglutide. In SURMOUNT-4, people switched from tirzepatide to placebo regained 14% of their body weight over a year, though they still finished about 10% below where they started.

The regain is front-loaded. A 2026 review of what happens after stopping describes most of it arriving in the first months, as appetite comes back and hunger hormones push in the same direction, and calls those early months a critical window. That's the period your plan has to cover best.

One honest caveat: the 2025 joint advisory from four US obesity and nutrition societies notes that nobody has yet run a controlled trial of a lifestyle programme after stopping a GLP-1. So the steps below come from what helps maintenance in general, plus the GLP-1 studies we do have. For the full picture of the regain data, see what happens when you stop a GLP-1.

Step 1: Build it while you're still on the medication

The advisory's main advice is to put good eating and activity habits in place before and during treatment, so they're already running when the medication stops. This is the step most people skip, and it's the one with the best GLP-1-specific evidence.

In a Danish trial that followed people for a year after treatment ended, those whose treatment had been supervised exercise regained about 6 kg less than those who had taken a GLP-1 on its own, and kept their body composition.

Before your last dose, aim to have these on autopilot:

• Protein-first meals you can make without thinking.
• Strength training at least three times a week, plus at least 150 minutes of moderate activity such as brisk walking. That's the advisory's recommendation for anyone on a GLP-1.
• Regular meal times and breakfast. The advisory lists both among the habits of people who keep weight off.
• Your starting point for maintenance. Note your average weight over your last few weeks on the medication. That's the number you'll protect.

In the UK, NICE recommends Wegovy on the NHS for a maximum of 2 years, so many people know their stop date well in advance. If that's you, start this step months before it, not the week before.

Step 2: Eat for maintenance, not for losing

Your appetite is coming back, and your smaller body now needs less energy than it did before you started. The aim is meals that fill you up for the energy they contain.

• Keep protein high. The advisory suggests 1.2 to 1.6 g per kg of body weight a day, or a simpler 80 to 120 g a day. In the large DiOGenes trial, people who had just lost weight regained about 0.9 kg less over six months on a modestly higher-protein diet, and fewer of them dropped out. Spread it across the day, roughly 25 to 30 g a meal. Find your number with the protein calculator.
• Choose lower-GI, less processed carbs. The same trial found a lower glycaemic index diet cut regain by a similar amount. Think oats, beans, lentils, wholegrains and vegetables rather than white bread, sweets and sugary drinks.
• Keep the fibre. The advisory lists minimally processed foods higher in fibre and protein among the habits linked with keeping weight off. See fibre on a GLP-1.
• Keep the structure. Skipped meals turn into bigger, hungrier ones later. Plan meals and snacks rather than deciding when you're already hungry. A weekly cook-up helps: see high-protein meal prep.

To work out roughly how much you need now, see how much to eat on a GLP-1. Filling, high-protein meals from the site:

• Chicken and White Bean Soup: 30 g protein, 235 kcal
• Lean Beef and Broccoli Stir-Fry: 38 g protein, 315 kcal
• Turkey Taco Lettuce Wraps: 32 g protein, 280 kcal
• High-Protein Red Lentil Soup: 24 g protein, 11 g fibre
• Apple Cinnamon Overnight Oats: 28 g protein, 10 g fibre

Step 3: Move more than you did while losing

Activity matters more for keeping weight off than for losing it. The American College of Sports Medicine says weight maintenance after weight loss is linked with more than 250 minutes of moderate activity a week, while noting that this comes from observational studies rather than trials. The advisory lists an hour a day of physical activity among the habits of people who keep weight off.

That can sound like a lot. In practice it's the advisory's baseline (three strength sessions and 150 minutes of walking) plus a bit more each week, until you're at around 35 minutes of brisk walking a day. Strength training is what protects your muscle, which is why it stays in the plan: weight that comes back tends to be more fat than muscle, which can leave you softer at the same weight. Start with how to exercise on a GLP-1.

Step 4: Weigh often, and set a regain line

The habit with the strongest maintenance evidence is the simplest one: weighing yourself regularly.

In the STOP Regain trial, 314 people who had lost an average of 19.3 kg were taught to weigh themselves daily and act on what they saw. Over 18 months, 72% of the comparison group regained 2.3 kg (5 lb) or more, against 46% of those coached face to face and 55% of those coached online. Daily weighing was linked with a lower risk of regaining.

In the National Weight Control Registry, which has followed thousands of people who lost at least 13.6 kg (30 lb), more than 87% were still keeping off at least 10% of their weight 5 and 10 years later. Those who weighed themselves less often, moved less or ate more fat as the years went on regained more. It's an observational study of people who volunteered because they'd succeeded, so it shows what successful maintainers do rather than proving cause.

How to use it:

1. Weigh at the same time, first thing in the morning, daily or a few times a week.
2. Watch the weekly average, not single days. Water and salt move the daily number around.
3. Set your regain line at 2 kg (about 5 lb) above your maintenance starting point. If your weekly average crosses it, act straight away: protein back up, portions checked, activity back to plan. If it keeps rising for a few weeks, talk to your prescriber.

Step 5: Plan for the first months

This is when appetite returns and regain is fastest, so make the decisions in advance. The advisory lists social support, advance planning and problem-solving among the coping strategies that help long-term maintenance.

• Expect hunger to come back over weeks, and with it the background thinking about food the medication quietened. See food noise.
• Plan the situations that catch you out: evenings, weekends, eating out, holidays. Decide what you'll do before you're in them. For restaurants, see eating out on a GLP-1.
• Keep your check-ins. If your clinic or service offers follow-up after stopping, use it. Someone else looking at your trend helps.

Staying on a lower dose is a real option

Stopping completely isn't the only way to come off your top dose. In SURMOUNT-MAINTAIN, people who had lost weight on their highest tirzepatide dose were assigned either to stay on it, drop to 5 mg, or switch to placebo for a year. From where they started, those who stayed on their top dose were 21.9% lighter at the end, those on 5 mg 16.6% lighter, and those on placebo 9.9% lighter. The trial was funded by Eli Lilly, and the authors note that individual responses vary.

Structured tapering, stepping the dose down over months, sounds sensible but hasn't been properly tested yet, according to the 2026 review. Whether you stay on, step down or stop is a decision to make with your prescriber, and staying on long term is a legitimate choice, not a failure.

If the weight is coming back

Regaining some weight after stopping is common, and it doesn't undo what you've achieved. What matters is acting early: a 2 kg drift is far easier to reverse than a 10 kg one. Go back to the basics in steps 2 to 4, and if the trend keeps climbing, talk to your prescriber about your options, including restarting treatment. For what to try while you're still on the medication and the scale stalls, see not losing weight on a GLP-1.

General nutrition information, not medical advice. Don't stop, reduce or restart a prescribed medication without talking to your prescriber.