Protein is the most critical nutritional variable for building muscle. You can train perfectly, sleep well, and take every supplement on the market — but if you're not eating enough protein, muscle gain will be slow or non-existent.
This guide covers how much protein you actually need, the best food sources to hit your targets, and the fastest way to track your protein intake every day.
How Much Protein Do You Need to Build Muscle?
The research-backed recommendation for muscle gain:
0.7–1g of protein per pound of bodyweight per day (1.6–2.2g per kilogram)
| Bodyweight | Minimum (0.7g/lb) | Optimal (~1g/lb) |
|---|---|---|
| 60kg (132 lbs) | 92g | 132g |
| 75kg (165 lbs) | 116g | 165g |
| 90kg (198 lbs) | 139g | 198g |
| 100kg (220 lbs) | 154g | 220g |
The upper limit: A 2018 meta-analysis in the British Journal of Sports Medicine found that protein intakes above 1.62g/kg/day produced no additional muscle gain benefit. More protein above this threshold doesn't build more muscle — it just adds unnecessary calories.
For most people, 1.6–2.0g/kg is the practical sweet spot: high enough to maximise muscle protein synthesis, not so high that it crowds out carbohydrates (which fuel training performance).
Protein Timing: Does It Matter?
The "anabolic window" — the idea that you must eat protein within 30 minutes of training — has been largely debunked by modern research.
What the current evidence shows:
Total daily protein matters most. Hitting your daily total is far more important than timing.
Spreading protein across 3–5 meals is beneficial. Research suggests muscle protein synthesis is maximised when protein is distributed throughout the day — roughly 0.4g/kg per meal — rather than consumed in one or two large doses.
Pre-sleep protein has a benefit. A casein-rich snack (cottage cheese, Greek yoghurt, casein protein) before bed supports overnight muscle protein synthesis. This is one area where timing does appear to matter.
Practical recommendation:
- Eat 3–5 meals throughout the day
- Aim for 30–50g protein per meal
- Have a protein-rich snack before bed
- Total daily protein is more important than any individual meal timing
Best High-Protein Foods
Complete Protein Sources (contain all essential amino acids)
| Food | Protein (per 100g) | Calories (per 100g) |
|---|---|---|
| Chicken breast (raw) | 23g | 120 cal |
| Turkey breast (raw) | 24g | 104 cal |
| Salmon (raw) | 20g | 208 cal |
| Tuna (canned in water) | 25g | 116 cal |
| Eggs | 13g | 155 cal |
| Beef (lean, raw) | 26g | 158 cal |
| Cottage cheese | 11g | 98 cal |
| Greek yoghurt (0% fat) | 10g | 57 cal |
| Whey protein powder | ~75g | ~380 cal |
Plant-Based Protein Sources
| Food | Protein (per 100g) | Calories (per 100g) |
|---|---|---|
| Tempeh | 19g | 193 cal |
| Edamame | 11g | 121 cal |
| Lentils (cooked) | 9g | 116 cal |
| Chickpeas (cooked) | 9g | 164 cal |
| Tofu (firm) | 8g | 76 cal |
| Seitan | 25g | 370 cal |
| Black beans (cooked) | 8g | 132 cal |
Note for plant-based eaters: Most plant proteins are incomplete (missing one or more essential amino acids). Eating a variety of plant sources — legumes + grains, for example — covers all essential amino acids. Alternatively, soy protein (tofu, edamame, tempeh) and quinoa are complete plant proteins.
How to Track Protein Daily
Tracking protein without an app is almost impossible — most people dramatically misjudge their intake. Research shows people overestimate protein intake by 20–30% on average.
Use a protein tracking app:
NutriBalance (free, Android) is the best option. It tracks protein (and all macros) for every meal, shows your running daily total, and lets you set a custom protein target in grams. Use the barcode scanner or AI food label scanner to log packaged foods in seconds.
Steps to set up protein tracking in NutriBalance:
- Download NutriBalance
- Go to Profile → Goals
- Set your protein target in grams based on your bodyweight calculation
- Log every meal — barcode scan packaged foods, AI scan labels, or search the database
- Check your running protein total throughout the day
Tips to hit your target:
- Prioritise protein at breakfast — it's the most commonly under-eaten meal
- Add Greek yoghurt or cottage cheese as snacks (high protein, low calorie)
- Have a protein-rich snack before bed (cottage cheese is ideal)
- If struggling to hit targets, add a whey protein shake (25–30g protein in 1–2 minutes)
High-Protein Meal Examples
Breakfast — 48g protein
- 3 eggs scrambled (18g) + 2 egg whites (7g) = 25g protein
- 200g Greek yoghurt (20g) + 1 scoop protein powder in yoghurt (optional)
- Total: ~48g protein, ~500 calories
Lunch — 50g protein
- 180g chicken breast (42g) in a salad
- 100g cottage cheese (11g)
- Total: ~50g protein, ~450 calories
Snack — 25g protein
- Whey protein shake (25g)
- Or: 200g cottage cheese (22g)
Dinner — 45g protein
- 200g salmon fillet (40g)
- 100g edamame (11g)
- Total: ~50g protein, ~500 calories
Daily total: ~170g protein, ~1,950 calories (Appropriate for a 75–80kg person in a slight calorie surplus)
Supplements: Do You Need Them?
Whey protein powder: Not essential, but the most efficient way to add protein without adding many calories. Useful when whole food protein is inconvenient. Use it to fill gaps in your daily target, not as the foundation.
Creatine monohydrate: The most evidence-backed muscle gain supplement. 3–5g daily. Increases phosphocreatine availability for explosive movements, supporting training intensity. Not a protein source — works independently.
Everything else: Largely unnecessary if your training, sleep, and nutrition are in order. BCAAs, glutamine, HMB, and most other supplements have minimal evidence of benefit when protein targets are already met.
Frequently Asked Questions
Can you build muscle without tracking protein? Some people with good nutritional intuition can hit protein targets without tracking — but research consistently shows most people underestimate protein intake significantly. Tracking for 2–4 weeks builds accurate intuition even if you stop tracking long-term.
Is it possible to eat too much protein? For healthy individuals with no kidney disease, protein intakes up to 2g/kg/day appear safe based on current research. Going significantly above 2.2g/kg/day provides no muscle-building benefit and contributes unnecessary calories.
What is the best free protein tracker app? NutriBalance is the best free protein and macro tracker for Android. It supports custom protein targets, has a barcode and AI label scanner, and adds gamification to help you stay consistent.
How long does it take to see muscle gain results? Muscle gain is slow. With consistent training and adequate protein (1.6–2g/kg/day), expect 0.5–1kg of muscle per month for beginners, less for intermediate/advanced lifters. The scale may not reflect this accurately — body composition measurements are more useful than weight alone.
Track your calories, macros, and streaks for free with NutriBalance — the gamified calorie tracker for Android.
