'Eat your protein!' You hear it everywhere, but how much exactly? Too little, and your muscles don't recover. Too much, and you waste your money for nothing. Here, backed by numbers, is how much protein you actually need each day to build muscle in 2026.
How much protein do you really need?
The research is now very clear. For a sedentary person, 0.8 g of protein per kilo of body weight is enough. But as soon as you train to build muscle, that need rises sharply. Recent meta-analyses converge on a range of 1.6 to 2.2 g per kilo per day to maximize muscle building.
- Muscle gain (main goal): 1.6 to 2.2 g/kg/day
- Cutting (fat loss while preserving muscle): 2.0 to 2.4 g/kg/day
- Maintenance / occasional athlete: 1.2 to 1.6 g/kg/day
- Beyond ~2.4 g/kg, no additional benefit for muscle gain has been demonstrated
A concrete example for 75 kg
A 75 kg person aiming to build muscle targets around 120 to 165 g of protein per day (75 × 1.6 to 2.2). The simplest approach: spread that amount across 3 to 4 meals of 30 to 40 g rather than eating it all at once — protein synthesis is better stimulated by regular intake.
The best protein sources
- Animal (complete profile): chicken, turkey, eggs, fish, lean beef, dairy
- Plant-based: lentils, chickpeas, tofu, tempeh, seitan, edamame
- Convenient supplements: whey (fast, post-workout), casein (slow, at night), plant protein
- Tip: combine several plant sources to get all essential amino acids
Timing: when should you eat protein?
The famous 30-minute 'anabolic window' after training has been greatly exaggerated. What matters most is your daily total. That said, 30 to 40 g within two hours around your session and a protein-rich evening meal do optimize recovery. Consistency beats perfect timing.
The mistakes that sabotage your results
- Underestimating portions: 100 g of cooked chicken provides only about 30 g of protein
- Relying entirely on shakes while neglecting real meals
- Forgetting total calories: without a surplus, no muscle gain, even with enough protein
- Focusing only on protein while neglecting fiber and micronutrients
Protein builds muscle, but it's training that gives the order. Without progressive overload, not a single gram will do much.
In short: aim for 1.6 to 2.2 g/kg/day, spread across the day, from varied sources, combined with progressive training and enough sleep. It's the combination — not any single factor — that builds muscle.
