For muscle gain, daily protein intake typically lands around 1.6–2.2 grams per kilogram of body weight.
Muscle growth runs on training plus steady protein. You need enough total grams, good distribution across meals, and food choices you can repeat week after week. This guide gives clear ranges, meal targets, and food examples so you can hit the sweet spot without guesswork.
Daily Protein Intake For Building Muscle: Smart Range
Most lifters progress well with about 1.6–2.2 g/kg per day. That range comes from controlled trials and position papers in sports nutrition and fits beginners and seasoned gym goers when paired with progressive resistance training and enough calories.
Why a range, not a single number? Body size, training load, age, sleep, and calorie balance shift needs. Start near 1.6 g/kg and move up toward 2.0–2.2 g/kg if you are in a calorie deficit, pushing volume hard, or older than 40.
| Body Weight | g/kg Target | Total Grams |
|---|---|---|
| 50 kg | 1.6–2.2 | 80–110 g |
| 60 kg | 1.6–2.2 | 95–130 g |
| 70 kg | 1.6–2.2 | 110–155 g |
| 80 kg | 1.6–2.2 | 130–175 g |
| 90 kg | 1.6–2.2 | 145–200 g |
| 100 kg | 1.6–2.2 | 160–220 g |
How This Compares To Baseline Requirements
The everyday baseline for adults is about 0.8 g/kg. That figure prevents deficiency in the general population. It is not set for lifting goals or body recomposition. When muscles are stressed with training, needs rise above that floor.
Per-Meal Targets That Drive Muscle Protein Synthesis
Daily totals matter, and so does distribution. A handy target is ~0.4 g/kg per meal across 3–5 meals. For an 80 kg lifter, that means 32 g per meal if eaten four times. Spacing protein every 3–4 hours keeps the muscle building signal active through the day.
Older lifters often do better with the upper end per meal. Age brings “anabolic resistance,” so meals closer to 0.5–0.6 g/kg can help. Hitting 2–3 g of leucine per meal from high-quality sources supports that signal.
When To Adjust Your Number
You’re In A Calorie Deficit
Lean mass is harder to hold during a cut. Nudge intake toward 2.0–2.2 g/kg. Keep resistance training in place and favor slow loss.
You’re New To Lifting
Newcomers can grow on the lower half of the range while skills and loads ramp up. Track progress and appetite. If recovery lags, move up.
You’re Over 40
Protein needs per meal climb with age. Total daily intake near the mid to high end plus firm per-meal servings helps maintain rate of gain.
You Follow A Plant-Forward Plate
Growth works just fine with plants. Build meals around soy foods, seitan, mixed legumes, and grains. Push toward the middle of the range and cover all amino acids across the day.
Sample Day At 80 kg (Four Meals)
Here’s a simple sketch that lands near 130 g in total. Swap foods to taste while keeping the per-meal anchor.
- Meal 1: Greek yogurt bowl with oats and berries (~32 g)
- Meal 2: Tofu stir-fry with rice (~34 g)
- Meal 3: Chicken wrap with beans (~34 g)
- Meal 4: Milk smoothie with whey and banana (~30 g)
Quality, Timing, And Easy Wins
Pick High-Quality Sources
Dairy, eggs, soy, meat, and fish bring complete amino acid profiles and plenty of leucine. Mixed plant combos work too. Aim for at least one palm-size portion at each sitting.
Post-Training Window
A solid protein dose soon after lifting fits well, especially if the last meal sat 4–5 hours ago. Match it to your per-meal number and include carbs for glycogen.
Snacks That Actually Help
String cheese, edamame, skyr, deli turkey, jerky, protein bars, or a simple milk shake turn snack time into progress. Keep one option in your gym bag.
Safety, Upper Bounds, And Hydration
Healthy lifters handle intakes up to ~2.2 g/kg without issue when kidneys are normal and fiber, fruits, and fluids are solid. Higher short stints show no harm in trained adults, though most people gain nothing extra past the range above. If you live with kidney disease, follow medical advice.
Extra protein boosts water needs. Drink with meals and around training so your weight holds steady day to day.
Protein In Common Foods (Handy Reference)
| Food | Serving | Protein |
|---|---|---|
| Chicken breast, cooked | 100 g | 31 g |
| Eggs | 2 large | 12–13 g |
| Greek yogurt | 170 g (6 oz) | 15–17 g |
| Skim milk | 1 cup (240 ml) | 8–9 g |
| Canned tuna | 1 can (120 g drained) | 25–28 g |
| Firm tofu | 100 g | 12–14 g |
| Tempeh | 100 g | 18–20 g |
| Lentils, cooked | 1 cup | 17–18 g |
| Black beans, cooked | 1 cup | 15 g |
| Seitan | 100 g | 20–25 g |
| Peanut butter | 2 Tbsp | 7–8 g |
| Whey isolate | 1 scoop | 22–27 g |
Simple Calculator You Can Run In Your Head
Pick a target in the range, multiply by body weight in kg, and split across meals. Quick math cues:
- 1.6 g/kg: body weight × 1.6
- 1.8 g/kg: body weight × 1.8
- 2.0 g/kg: body weight × 2.0
- 2.2 g/kg: body weight × 2.2
At 68 kg, 1.8 g/kg lands near 122 g. Four meals of ~30 g gets you there with ease.
Evidence In Plain Language
Large trial reviews find that gains rise with more protein up to a point. The curve tends to flatten near 1.6 g/kg, with smaller inches still appearing up to about 2.2 g/kg. Sports bodies also nudge lifters to space protein during the day and include a serving soon after training. See the open-access ISSN position stand on protein and the BJSM meta-analysis on protein and training for deeper detail on these ranges and patterns.
Putting It All Together
Lift two to five days each week with progressive sets. Eat protein at each meal, aim for your daily range, and sleep well. Adjust by feel and by the mirror: if recovery stalls or strength dips, bump intake within the range; if you feel stuffed or gassy, pull back a notch and tidy your meal timing.