Body Recomposition: Lose Fat and Build Muscle at Once
You can lose fat and build muscle at the same time, but it works better for some people than others. Here's who should recomp and exactly how to set it up.
Body recomposition, or "recomp," means losing fat and building muscle at the same time, so your body shape changes even if the scale barely moves. It's real and it works, especially for beginners, people returning after a break, and people with a fair amount of body fat. It works more slowly for lean, experienced lifters, who usually do better with separate cutting and building phases.
Here's who recomp suits, how to set your calories and protein, what training looks like, and how to tell whether it's working.
Who recomp works best for
| Profile | Recomp potential | Why |
|---|---|---|
| Complete beginner to lifting | High | New training stimulus drives fast muscle gain |
| Returning after a long break | High | Muscle tends to come back faster the second time |
| Higher body fat, some training history | Moderate to high | Stored energy supports muscle growth in a small deficit |
| "Skinny fat" (normal weight, low muscle) | High | Needs muscle more than weight loss |
| Lean, 3+ years of consistent training | Low | Muscle gain is slow; a deficit makes it even slower |
If you're in the "skinny fat" group, our skinny fat to abs guide goes into detail. If you're lean and experienced, read cutting vs bulking for abs instead.
How recomp works
Your body is constantly breaking down and rebuilding tissue. With hard resistance training and enough protein, you can tip the balance toward building muscle. Meanwhile, a small calorie deficit (or eating near maintenance) lets you draw on stored fat for energy. You won't build as fast as in a surplus or lose fat as fast as in a bigger deficit, but you do both slowly.
That's the trade-off: recomp is efficient for appearance but slow on paper. Expect changes over months, not weeks.
Step 1: Set your calories
Start by finding your maintenance calories with the TDEE calculator. Then choose:
- Higher body fat: 300-500 calories below maintenance. You'll lose fat steadily and still build muscle as a beginner.
- Moderate body fat: about 200-300 below maintenance.
- Lower body fat or skinny fat: maintenance to 200 below.
An alternative some people like is calorie cycling: eating a bit more on training days and less on rest days, with the weekly average in a small deficit. It isn't magic, but it can make adherence easier.
Step 2: Prioritize protein
Protein is the backbone of a recomp. Aim for roughly 1.6-2.2 g per kg of bodyweight per day. If you carry a lot of body fat, basing it on your goal weight or lean mass prevents an unrealistically high number.
Spread it over 3-5 meals with around 25-40 g each. The protein calculator gives you a daily target, and our guide on how much protein to get abs explains the reasoning.
Worked example
Jordan is 80 kg, about 25% body fat, and new to lifting. Maintenance is around 2,600 calories.
- Calories: about 2,250 per day (roughly 350 below maintenance)
- Protein: 80 x 1.8 = 144 g per day (576 calories)
- Fat: about 70 g (630 calories)
- Carbs: the rest, about 260 g (1,040 calories)
Jordan lifts 3-4 times a week and walks 8,000 or so steps a day. If the weekly average weight drops roughly 0.25-0.5 kg per week while lifts go up, the recomp is on track.
Step 3: Train for muscle, not for calorie burn
The most common recomp mistake is treating the gym as a calorie-burning session. You need a reason to build muscle, which means progressive resistance training.
- Frequency: 3-4 full-body or upper/lower sessions per week
- Exercises: compound lifts (squats, deadlift variations, presses, rows, pull-ups) plus some isolation work
- Volume: roughly 10-20 hard sets per muscle group per week
- Effort: most sets within 1-3 reps of failure
- Progression: add reps or load over time, and track it
Include direct ab work 2-3 times a week. Recomp is a great time to build thicker ab segments while body fat comes down. The ab workout generator is a quick way to plan those sessions.
Cardio is optional but helpful for health and a bit of extra burn. Walking is the easiest to recover from; heavy cardio volume can eat into your lifting performance.
Step 4: Track the right things
The scale is the worst single tool for recomp because muscle gain can offset fat loss. Track several things instead:
- Weekly average weight. Expect it to drift down slowly, or stay flat if you're lean.
- Waist measurement at the belly button, every 1-2 weeks. A shrinking waist with stable weight is a strong recomp signal.
- Strength. Rising lifts suggest you're building or at least keeping muscle.
- Progress photos in consistent lighting every 2-4 weeks. See how to take progress photos for abs.
How long does a recomp take?
Give it at least 12-16 weeks before judging. Beginners often see clear changes in 3-6 months. If you've been recomping for a few months and your waist and strength haven't changed, something needs adjusting: usually protein is lower than you think, training isn't progressive, or calories are drifting above maintenance.
Common recomp mistakes
- Eating too little. A big deficit makes muscle gain much harder. Recomp works best with a small deficit or maintenance.
- Program hopping. Changing your routine every few weeks makes it hard to progress any lift. Run one program for at least 8-12 weeks.
- Too much cardio, too little lifting. Burning calories feels productive, but muscle gain needs heavy, progressive sets.
- Inconsistent protein. Hitting your target three days a week and missing it on the rest drags your average down more than you think.
When to stop recomping
Switch strategies when:
- You're lean but your strength has plateaued for months. A small, controlled surplus may build muscle faster.
- You're still carrying a lot of fat and progress is very slow. A slightly larger deficit (aimed at 0.5-1% of bodyweight per week) may get you there faster.
- You're getting close to visible abs and want to finish. A short, dedicated cut often works well.
Where AbShred fits
Recomp changes are slow and easy to miss in the mirror. AbShred, an iPhone app that's coming soon, estimates a body-fat range and six ab zone scores from a weekly photo taken in the same light, which can help surface gradual change. It's an AI estimate for motivation, not a body composition measurement. Join the waitlist.
FAQ
Can you recomp at maintenance calories?
Yes, particularly as a beginner or if you're lean and don't want to lose much weight. Progress is slower on the fat-loss side, but muscle gain can be steady.
Is body recomposition possible for women?
Yes. The principles are identical: progressive resistance training, adequate protein and a small deficit or maintenance. Women often see notable changes in shape with stable bodyweight.
Why is the scale not moving during my recomp?
Because you may be losing fat and gaining muscle at a similar rate. Check your waist, strength and photos. If all three are flat for a month or more, adjust your plan.
How much muscle can you build during a recomp?
It varies widely with training age, genetics, sleep and protein intake. Beginners typically gain the most. Don't expect the same rate as a dedicated muscle-building phase.
Should I do cardio during a recomp?
Some is helpful, especially walking. Just keep it from interfering with your lifting recovery, since muscle gain is half the goal.