Protein for Weight Loss and Muscle Gain: Recomposition Guide
How to lose fat and build muscle at the same time (body recomposition) — the exact protein intake per kilogram you need, plus meal and training strategies.
“Lose fat and gain muscle at the same time” sounds like a fitness fantasy — but it has a name: body recomposition, and it’s a real, evidence-supported outcome. It’s easiest for beginners, returning lifters, and anyone with above-average body fat. Protein is the single most important macronutrient for making it happen.
Why protein is the key
In a calorie deficit, your body is tempted to break down muscle for energy. High protein intake blocks that process while simultaneously supplying the amino acids needed to build new tissue — as long as you’re training. That’s why recomposition works: protein lets a deficit and a training stimulus coexist.
How much protein for recomposition?
Aim for 1.8–2.4 g of protein per kilogram of body weight per day — the high end of the muscle-building range. Because your body is doing two jobs at once, you need more protein than a typical cut or bulk alone.
| Body weight | Protein per day (1.8–2.4 g/kg) |
|---|---|
| 60 kg | 108–144 g |
| 70 kg | 126–168 g |
| 80 kg | 144–192 g |
The three rules of recomposition
- Keep a small deficit, not an aggressive one. 200–300 calories below maintenance is the sweet spot. Too aggressive stalls muscle growth; too small stalls fat loss.
- Train hard — especially resistance training. Progressive overload is non-negotiable. Without a strong training signal, extra protein cannot stimulate muscle growth. Aim for 3–5 strength sessions a week.
- Be patient. Recomposition is slower than a dedicated cut or bulk. Scale changes will be modest, but body composition improves visibly over 8–12+ weeks. Track progress photos and strength gains instead of the scale.
What to eat during recomposition
Recomposition needs dense protein with controlled calories:
- Chicken breast, egg whites, and white fish — lean protein at its best.
- Greek yogurt and cottage cheese — filling, high-protein dairy.
- Tofu, lentils, and legumes — solid plant options.
- Whey protein — an easy way to top up 20–40 g per meal.
Get your exact recomposition target
Your precise number depends on body weight and training experience. The protein calculator for weight loss and muscle gain gives you a personalized target, and the meal planner turns it into a full day of weight-loss-and-muscle-gain friendly meals.