A workout plan for weight loss and muscle gain at the same time is called body recomposition, or “recomp”. It combines resistance training that’s demanding enough to build muscle with a small calorie deficit that’s mild enough not to undermine that muscle growth.
This guide covers who recomp works best for, the exact training plan to run, and how to structure your nutrition so both goals move forward together instead of fighting each other.
Who Body Recomposition Works Best For
Recomp isn’t equally effective for everyone. It works fastest for:
- Beginners in their first 3-12 months of structured training, whose bodies respond strongly to any resistance training stimulus
- People returning after a layoff who are regaining muscle they’ve already built before (“muscle memory” makes this fast)
- People carrying excess body fat, whose bodies can access stored fat for energy more easily while building muscle
If you’re already lean and have several years of consistent training behind you, recomposition still works, but progress is slower and more gradual. In that case, a traditional cut-then-bulk cycle may deliver faster results for either goal individually.
The Training Plan
Muscle growth requires enough training volume and intensity to signal your body to build muscle, whether energy intake is in a surplus or deficit. The training side of recomp doesn’t change much from a standard muscle-building plan.
Frequency: 4 days per week Structure: Upper/lower split, or full body if you can only manage 3 days Session length: 45-60 minutes Rep ranges: 6-12 reps for most exercises, prioritizing progressive overload
Sample 4-Day Split
| Day | Focus | Key exercises |
|---|---|---|
| Day 1 | Upper body | Bench press, barbell row, overhead press, lat pulldown |
| Day 2 | Lower body | Back squat, Romanian deadlift, leg press, calf raise |
| Day 3 | Rest or light cardio | Walking, cycling, mobility work |
| Day 4 | Upper body | Incline press, pull-up, dumbbell shoulder press, cable row |
| Day 5 | Lower body | Deadlift, lunge, leg extension, leg curl |
| Day 6-7 | Rest | Full recovery |
This is the same structure covered in our 4 day upper lower workout plan, which includes exact sets and reps for every exercise. If 4 days a week isn’t realistic, a 3 day full body workout plan also works, just train each muscle group with slightly more volume per session.
Apply progressive overload every session: add a rep, then add weight once you hit the top of your rep range. This is what tells your body to keep or build muscle even while you’re eating fewer calories than you burn.
Adding cardio on top of this training plan speeds up the deficit without costing muscle, as long as you get the split right. See our guide to the aerobic workout for weight loss for how to combine Zone 2 and HIIT with resistance training.
Nutrition: The Part That Makes or Breaks Recomp
Training builds the signal for muscle growth. Nutrition determines whether your body has what it needs to act on that signal while still losing fat.
1. Small Calorie Deficit, Not a Big One
A deficit of 10-15% below maintenance is enough to lose fat gradually without starving the muscle-building process. A steep deficit (25%+) makes it much harder to build or even maintain muscle, because your body doesn’t have the energy surplus to prioritize new tissue.
Use our TDEE calculator to find your maintenance calories, then subtract 10-15% as your recomp target.
2. High Protein Intake
Protein needs are higher during recomp than during a standard bulk or cut, because you’re asking your body to build and preserve muscle tissue while running a deficit. Target 1.8-2.2g per kg of bodyweight (roughly 0.8-1g per lb).
Our protein calculator gives you an exact daily target based on your weight and activity level.
3. Prioritize Recovery
Sleep and recovery matter more during recomp than during a straightforward bulk, because you’re training hard in a calorie deficit. Aim for 7-9 hours of sleep and don’t add extra cardio on top of your lifting unless fat loss stalls.
How to Know It’s Working
Because the scale can stay flat or move slowly during recomp (you’re losing fat and gaining muscle at similar rates), don’t rely on bodyweight alone. Track:
- Progress photos every 2-4 weeks, same lighting and pose
- Waist measurement as a proxy for fat loss
- Strength on your main lifts as a proxy for muscle gain
- How clothes fit, which often shows change before the scale does
If strength is climbing and your waist is shrinking (or holding steady while your lifts go up), recomp is working even if the scale isn’t moving much.
When to Stop Recomping
Recomposition is a gradual process. If after 4-6 months of consistent training and eating you want faster progress on one specific goal, switch to a dedicated phase: a calorie surplus if muscle gain is now the priority, or a slightly larger deficit if fat loss is now the priority. Recomp is the right starting point for most people, not necessarily the permanent strategy forever.
Not sure how to structure your own numbers? The Your PT AI plan generator builds a training and nutrition plan around your specific goals, adjusting your training volume and calorie targets automatically as your body changes.
Frequently Asked Questions
- Can you really lose fat and build muscle at the same time?
- Yes, this is called body recomposition. It works best for beginners, people returning after a long break, and those carrying extra body fat, because their bodies are primed to build muscle and burn fat simultaneously. Lean, experienced lifters see it happen more slowly, but it still works with the right training and a small calorie deficit.
- Should I eat in a calorie deficit or surplus to recomp?
- Eat at maintenance or in a small deficit (around 10-15% below maintenance), not a surplus. A surplus is only for maximizing muscle gain speed. Recomposition relies on high protein intake and resistance training doing the work of building muscle while the deficit handles fat loss.
- How much protein do I need for body recomposition?
- Aim for 1.8-2.2g of protein per kg of bodyweight per day (roughly 0.8-1g per lb). This is higher than a standard bulking or cutting target because protein needs increase when you are in a calorie deficit and trying to preserve or build muscle at the same time.
- How long does body recomposition take?
- Expect visible changes in 8-12 weeks and a meaningfully different physique in 4-6 months. Recomposition is slower than pure bulking or pure cutting because you are asking your body to do two things at once, so patience and consistent tracking matter more than usual.
- What training split works best for losing fat and gaining muscle?
- A 4 day upper lower split or a 3-4 day full body plan both work well. The key factor isn't the split itself, it's keeping training volume and intensity high enough to signal muscle growth even while eating in a deficit. Don't cut volume just because you're cutting calories.