Strength training after GLP-1: how to keep your results once you stop

After you stop a GLP-1 medication, strength training is one of the few things shown to help you keep more of the weight off, and it protects the muscle you kept. Train 2–3 times a week (3–4 once you're settled), add 150–300 minutes of walking or other moderate activity, and use the appetite that comes back to fuel heavier lifts. The months after the last dose are actually a good time to build muscle: you're eating more, so your body has what it needs to grow.

Below: what the trials found about exercise after stopping, why muscle matters even more now, a phased plan from 8 weeks before your last dose to a year after, how to eat for it, and what to change if the scale starts to climb.

What the research says about exercise after stopping

Most people regain weight after stopping a GLP-1. In the STEP 1 extension (Wilding, Diabetes, Obesity and Metabolism, 2022), people regained about two-thirds of the weight they'd lost on semaglutide within a year of stopping, and their blood pressure and blood sugar drifted back too. In SURMOUNT-4 (Aronne, JAMA, 2024), people switched from tirzepatide to placebo regained about 14% of their body weight over the next year.

Exercise changed that picture in at least one trial. In a Danish study (Jensen, eClinicalMedicine, 2024), adults who lost weight and then spent a year on liraglutide, supervised exercise, both, or placebo were followed for a year after treatment ended. Those who had only taken liraglutide regained about 6 kg more than those who had exercised. Only the groups that had exercised still kept a weight loss of 10% or more a year after stopping. The exercise there was mostly vigorous, supervised sessions; the lesson isn't one type of workout, but that people who kept an exercise habit kept more.

It's one trial, on liraglutide, and other things (food, sleep, stress, genes) still matter. But it fits what we've known for years: people who keep weight off long term are, as a group, physically active.

Why muscle matters even more once you stop

• Regain tends to be fat. When weight returns after a diet, it comes back as more fat than muscle. In postmenopausal women, Beavers and colleagues (American Journal of Clinical Nutrition, 2011) found only about 0.12 kg of lean tissue returned for every kilogram of fat regained. So without training, you can end up the same weight as before, with less muscle.
• Muscle is active tissue. It uses blood sugar and helps your body handle meals. That matters more as the medication's effect on blood sugar fades.
• Strength is what you'll notice in daily life. Climbing stairs, lifting a suitcase, getting off the floor. It's also the base for staying active, which helps with weight.
• It gives you a routine that isn't about food. With food noise coming back for many people, a fixed training habit is one of the few anchors in the week. Our guide to hunger after stopping GLP-1 covers the food side.

The upside: you can build muscle now

On the medication, most people eat well under what they burn. That makes adding muscle hard; the realistic aim is to hold on to it. Once you stop and eat closer to what you burn, your body has the energy and protein to build muscle again, especially if you train hard and progress. Beginners and people coming back from a break tend to gain strength fastest.

So treat the year after stopping as a building phase, not damage control. A slightly heavier body with more muscle and a waist that holds steady is a good result.

How much to do after stopping

The 150-minute floor and twice-weekly strength work are from the US Physical Activity Guidelines. The American College of Sports Medicine's position stand on weight (Donnelly, 2009) found that more than 250 minutes a week of activity was linked with better weight maintenance after weight loss. The step ranges come from a 2022 analysis of 15 studies in The Lancet Public Health (Paluch), where the benefit for death from any cause levelled off at those counts by age. You don't need to hit the top numbers on day one; build to them over 3 months.

The plan: from 8 weeks before your last dose to a year after

Phase 1: the last 8 weeks on the medication

If you and your prescriber have set a date, this is when to build the habit, while hunger is still low and changes feel easy.

• 2 full-body sessions a week (the two workouts in our guide to strength training on GLP-1 work well).
• Fix the days and times now: training on Monday and Thursday at 7:30 is a habit; "twice a week" isn't.
• Write down every weight and rep, so you'll know if you're going forward after the last dose.
• Take a starting point: weight, waist at the navel, and a 30-second chair stand count.

Phase 2: weeks 1–12 after the last dose

The drug is leaving your body over roughly 4–6 weeks (faster for daily liraglutide). Appetite returns, energy often improves, and sessions start to feel stronger.

• Keep 2 sessions; add a third from week 4 if you can.
• Push progression: when you beat the top of the rep range on your last set two sessions in a row, add weight.
• Walk after meals: 10–15 minutes after lunch and dinner adds up to 2–3 hours a week and is easy to keep.
• Weigh yourself 1–3 times a week and look at the weekly average, not single days.

Phase 3: months 4–12

Build. Move to 3–4 sessions a week, using a split so each session stays under 45 minutes.

Only 3 days? Do lower, upper, then a full-body day. Rest 1–2 minutes between sets on the big lifts. Every 6–8 weeks, take an easier week with half the sets, then change one or two exercises.

How hard

End each set with 1–3 good reps left. In the building phase you can take some sets on big lifts closer to your limit, as long as form holds. A set you could repeat 10 more times isn't building anything.

Eating to train now that appetite is back

• Keep protein high. 1.2–1.6 g per kg of a healthy goal weight a day; a 2018 meta-analysis of training studies (Morton, British Journal of Sports Medicine) found extra protein helped strength-training gains up to about 1.6 g per kg, with little extra benefit above that. Our guide to how much protein to eat has a table by height and weight.
• Spread it out. 25–40 g at each of 3–4 meals, with one of them within a couple of hours after training.
• Don't crash diet. Very low calories after stopping make training feel awful and push the body to defend its weight harder. Aim to hold weight steady, not keep losing.
• Carbs around training. Oats, potatoes, rice, fruit or whole-grain bread in the meal before a session help you lift more. With appetite back, this is easier than it was on the drug.
• Fibre and volume. Vegetables, beans and fruit at most meals keep you fuller for longer as hunger returns.

Our coming off GLP-1 meal plan sets out a week of meals for this phase, with protein and fibre in grams.

If the scale starts to climb

Some gain is normal: more food in the gut, more water stored with carbohydrate, and possibly some muscle. Before you change anything:

1. Look at the trend. A 4-week rising average, not a heavy morning.
2. Check your waist. Steady waist with rising strength often means the gain is mostly water and muscle.
3. Check the basics. Are you still training on your days? Still hitting protein? Sleeping 7+ hours? Walking after meals?
4. Then make one change. Add a session or 2,000 daily steps, or trim one snack or drink a day. Give it 3–4 weeks.
5. Use your line. If you agreed with your prescriber on a weight that would bring you back in (for example 5–10 lb above where you stopped), call when you reach it. Restarting, a lower dose or another medicine are options only they can weigh up.

Our guide on weight gain after coming off GLP-1 has the numbers from each trial and how to set that line.

If you already stopped and never trained

Start now; it isn't too late. Follow Phase 2 from today, beginning with the easier version of each exercise and 1–2 sets. For the first 4 weeks the goal is just showing up twice a week and learning the moves. Our guide to strength training for women on GLP-1 explains how to pick a first weight, and what to do about knees, bone and pelvic floor.

Safety

Check with your doctor before starting or stepping up if you have heart disease, chest pain with effort, uncontrolled blood pressure, osteoporosis, or diabetes treated with insulin or a sulfonylurea; as the GLP-1 leaves, your diabetes plan may change, and exercise can still lower blood sugar. Stop and get help for chest pain or pressure, fainting, or unusual breathlessness.

Common mistakes

1. Stopping training when you stop the medication. This is when it does the most for your weight.
2. Switching to cardio only to "burn off" the extra food. Keep the lifting; add the walking.
3. Never going heavier. The same dumbbells for a year keep you where you are. Progress builds muscle.
4. Dieting hard to fight regain. It drains your training and rarely lasts.
5. Judging by the scale alone. Waist, strength and how clothes fit tell you more.
6. Waiting for motivation. Fixed days and times beat motivation every week.

Questions people ask

Will strength training stop me regaining weight after GLP-1?

Not on its own, and no one can promise a result. In the Danish trial, people who had exercised regained much less on average than those who'd only taken the medication. Training, protein, steady meals and sleep together give you the best chance.

Can I build back muscle I lost on the medication?

Yes, with progressive training and enough protein. It takes months, and it's easier once you're eating at maintenance than it was in a deficit.

Is it better to lift or do cardio after stopping?

Both. Lifting keeps and builds muscle; walking and cardio add up the minutes linked to keeping weight off. If you only have time for one, lift twice a week and walk after meals.

Should I train more while tapering?

Use the taper to set the routine, not to suddenly double it. Two solid sessions a week, logged, is the right start; build from there once you're off.

I gained a few pounds but I'm stronger. Is that bad?

Not necessarily. Muscle, water and food in the gut all weigh something. If your waist is steady and your lifts are going up, keep going and watch the 4-week trend.

More on eating and training on weight-loss medication: all our muscle plan guides.

Sources: Wilding J. et al., STEP 1 extension, Diabetes Obes Metab, 2022. Aronne L. et al., SURMOUNT-4, JAMA, 2024. Jensen S. et al., healthy weight loss maintenance with exercise, liraglutide or both, one year after treatment ended, eClinicalMedicine, 2024. Beavers K.M. et al., lean mass during weight regain in postmenopausal women, Am J Clin Nutr, 2011. Donnelly J.E. et al., ACSM position stand, physical activity for weight loss and prevention of regain, Med Sci Sports Exerc, 2009. Paluch A.E. et al., daily steps and mortality, Lancet Public Health, 2022. Morton R.W. et al., protein supplementation and resistance training, Br J Sports Med, 2018. US Department of Health and Human Services, Physical Activity Guidelines for Americans, 2nd edition. This guide is about exercise and food, not medical advice; keep to your prescriber's advice.