Body Recomposition: Build Muscle and Lose Fat at the Same Time
The old rule says you have to bulk to build muscle and cut to lose fat. But plenty of guys get bigger and leaner at the same time. Here's who body recomposition works for, what the research says, and exactly how to do it.
Get your recomp numbers
Choose the Recomp goal in the free Fit Gorillas Macro Calculator to get your calories, protein, carbs and fats.
Who can recomp?
Body recomposition works for more guys than most people think, but some get much faster results than others.
| You are… | Will a recomp work? | Why |
|---|---|---|
| New to lifting | Very well | Your muscles respond fast to training, even without a calorie surplus. |
| Coming back after a break | Very well | Muscle you've built before comes back faster than it took to build. |
| Around 15–20% body fat | Well | Your stored fat can help fuel muscle growth while you eat around maintenance. |
| Over about 20% body fat | Yes, but a cut is faster | A proper cut gets you visible results sooner. |
| Lean (under about 10%) and experienced | Slowly | You're better off with a lean bulk to keep growing. |
Not sure where you are? Check your mirror against your waist measurement, or use the body-fat field in the calculator, which tells you if a different goal would suit you better.
What the research says
- Trained lifters can recomp too (Barakat et al., 2020): a review in the Strength and Conditioning Journal found plenty of studies where people gained muscle and lost fat at the same time, including experienced lifters, not just beginners. The two main drivers were progressive resistance training and good nutrition, with sleep also playing a part.
- High protein makes a big difference (Longland et al., 2016): young men ate 40% below their needs for 4 weeks while training hard 6 days a week. The group eating 2.4 g of protein per kg gained about 1.2 kg of lean mass and lost 4.8 kg of fat. The group eating 1.2 g/kg gained only 0.1 kg of lean mass and lost 3.5 kg of fat. That's an extreme setup, but it shows how much protein matters when calories are low.
- Big deficits stall muscle gain (Murphy & Koehler, 2022): a meta-analysis found that training in a calorie deficit reduced lean mass gains compared with no deficit, while strength gains were similar. A deficit of around 500 calories a day was enough to stop lean mass gains. That's why a recomp keeps calories close to maintenance.
How to recomp, step by step
- Eat at or slightly below maintenance. About 100–300 calories under your maintenance. Our calculator's Recomp setting uses 100 under. Don't go 500 or more under, or muscle gain stalls.
- Eat high protein every day: about 2.2–2.5 g per kg of bodyweight. Spread it over 3–5 meals of 30–50 g. See the high-protein foods list for easy options.
- Train with progressive overload 3–5 days a week, hitting each muscle about twice a week. Add reps or weight over time. Without a hard training stimulus, there's no reason for your body to build muscle.
- Sleep 7–9 hours. Recovery is when your muscles grow, and short sleep makes fat loss harder too. See how sleep affects muscle.
- Track your food. Eating around maintenance only works if you know where maintenance is. See how to count macros.
- Track the right progress markers (below), and review every 4 weeks.
Recomp targets by bodyweight
Typical estimates for a 25-year-old guy, 180 cm tall, training 3–5 days a week:
| Body weight | Maintenance | Recomp calories (−100 to −300) | Protein (2.2–2.5 g/kg) |
|---|---|---|---|
| 60 kg (132 lb) | ~2,490 | 2,190–2,390 | 132–150 g |
| 70 kg (154 lb) | ~2,640 | 2,340–2,540 | 154–175 g |
| 80 kg (176 lb) | ~2,800 | 2,500–2,700 | 176–200 g |
| 90 kg (198 lb) | ~2,950 | 2,650–2,850 | 198–225 g |
| 100 kg (220 lb) | ~3,110 | 2,810–3,010 | 220–250 g |
Carrying a lot of fat? Base your protein on your goal weight instead. More on maintenance calories in how many calories to build muscle.
How to tell if it's working
On a recomp, the scale is the worst way to judge progress. If you lose 1 kg of fat and gain 1 kg of muscle, your weight doesn't change, but you look noticeably better. Track these instead:
| Measure | How often | What you want to see |
|---|---|---|
| Waist (at the belly button, morning) | Every 2–4 weeks | Slowly going down |
| Progress photos (same light, same time) | Every 4 weeks | Leaner, fuller muscles |
| Your main lifts | Every session | Reps or weight going up |
| Bodyweight (weekly average) | 3–7 mornings a week | Steady, or dropping very slowly |
Waist going down while your lifts go up is the clearest sign a recomp is working.
Recomp, cut or bulk?
- Recomp if you're a beginner, coming back after time off, or around 15–20% body fat and happy to make slower, steady progress.
- Cut first if you're carrying a lot of fat and want visible results sooner. See how to cut without losing muscle.
- Lean bulk if you're already lean and your main goal is getting bigger. See lean bulk vs dirty bulk.
Recomp progress slows down as you get more experienced and leaner. If your waist and lifts haven't moved in 8 weeks, it's time to switch to a dedicated lean bulk or cut.
Frequently asked questions
Can you build muscle and lose fat at the same time?
Yes. It's called body recomposition. It works best for beginners, guys coming back after a break and guys with some fat to lose, but studies show trained lifters can do it too. You need hard resistance training, high protein and calories around maintenance.
How many calories should I eat to recomp?
Eat at or slightly below your maintenance calories, about 100 to 300 a day under. A bigger deficit makes muscle gain much harder. The free Fit Gorillas Macro Calculator has a recomp setting that works out your number.
How much protein do I need for body recomposition?
Aim for about 2.2 to 2.5 g of protein per kg of bodyweight a day. That is higher than for a bulk, because eating at or below maintenance makes protein more important for building muscle.
How long does body recomposition take?
It is slower than a bulk or a cut. Expect to see clear changes in your waist, photos and lifts over 2 to 3 months, not weeks. Check your progress every 4 weeks.
Why isn't the scale moving on my recomp?
That is normal. If you are losing fat and gaining muscle at the same time, your weight can stay about the same. Track your waist measurement, progress photos and your lifts instead.
Should I bulk, cut or recomp?
Recomp if you are a beginner, coming back after a break, or around 15 to 20% body fat. Cut first if you are carrying a lot of fat and want faster visible results. Lean bulk if you are already lean and want to add size.
Lose the fat. Keep building.
Two steps to stop guessing and start changing your body.
Macro Calculator
Pick the Recomp goal to get your calories, protein, carbs and fats.
Calculate my macros →Macro Tracker
Plan your meals in grams, hit your protein every day, and use weekly check-ins to see if your recomp is on track.
Get the Macro Tracker →Want the full training and eating plan too? See the Muscle-Building Gorilla Guide
Not Born. It's Built.
This article is general information for healthy adults and isn't medical advice. Sources: Barakat et al. (2020), "Body recomposition: can trained individuals build muscle and lose fat at the same time?", Strength and Conditioning Journal. Longland et al. (2016), "Higher compared with lower dietary protein during an energy deficit combined with intense exercise promotes greater lean mass gain and fat mass loss", American Journal of Clinical Nutrition. Murphy & Koehler (2022), "Energy deficiency impairs resistance training gains in lean mass but not strength", Scandinavian Journal of Medicine & Science in Sports. Related reading: How to cut without losing muscle · Lean bulk vs dirty bulk · How much protein to build muscle · High-protein foods list · Best supplements for muscle growth · Creatine: how much and when · Sleep and muscle growth