LiftonicNutrition
How much protein do you need to build muscle?
Around 1.6 grams of protein per kilogram of body weight a day (about 0.7 g per lb) covers most lifters trying to build muscle. Spread it over three to five meals and the timing takes care of itself.
The daily target
Research pooling dozens of training studies found that extra protein stops adding measurable muscle gains at roughly 1.6 g per kg of body weight per day, with some people still benefiting up to about 2.2 g/kg. That gives a simple range:
| Body weight | 1.6 g/kg | 2.2 g/kg |
|---|---|---|
| 60 kg (132 lb) | 96 g | 132 g |
| 75 kg (165 lb) | 120 g | 165 g |
| 90 kg (198 lb) | 144 g | 198 g |
If you carry a lot of body fat, base the number on your goal weight or height instead of your current weight, or the target gets unrealistically high. If you are eating less to lose fat, aim toward the top of the range: it helps you keep muscle while the scale goes down.
Spread it across the day
Your body can use a large meal of protein, but muscle building responds well to a dose every few hours. A practical approach is three to five meals with about 0.4 g/kg each, which is 25 to 40 g for most people. That is a chicken breast, a large tub of Greek yogurt, a scoop or two of protein powder, or three to four eggs with a glass of milk.
Foods that make it easy
- Lean meat and fish: about 25 to 30 g per 100 g cooked.
- Greek yogurt and cottage cheese: about 10 g per 100 g, often more in high-protein versions.
- Eggs: about 6 g each.
- Tofu, tempeh, lentils and beans: 8 to 20 g per 100 g, with fiber as a bonus.
- Protein powder: 20 to 25 g per scoop. Handy, not required.
Plant eaters can hit the same targets. Mixing sources across the day, such as soy, legumes and grains, covers the full set of amino acids, and some people aim slightly higher to make up for lower digestibility.
Does the post-workout window matter?
Less than gym folklore says. If you ate a protein-rich meal in the few hours before training, there is no rush afterwards. If you trained fasted early in the morning, get a meal with protein in within an hour or two. Your total for the day matters far more than the minute you drink a shake.
Is high protein safe?
For healthy adults, intakes in this range are widely used and well studied. If you have kidney disease or another medical condition, ask your doctor before raising your protein. Later this week we will look at what to eat in the hours before you train.
This post is general education, not medical or dietary advice. If you have a health condition, are pregnant or take medication, talk to a doctor or registered dietitian before changing how you eat.
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