How Much Protein Per Day to Lose Weight
Protein is the most important macro when you are losing weight. Here is a practical daily target that protects muscle and curbs hunger.

When you are in a calorie deficit, protein becomes the macro that matters most. It protects the muscle you already have, keeps you full on fewer calories, and costs more energy to digest than carbs or fat. Getting it right makes the whole cut easier.
Why protein matters in a deficit
In a deficit your body can pull energy from both fat and muscle. Eating enough protein, paired with resistance training, signals your body to hold onto muscle so most of the loss comes from fat. That protects your metabolism and keeps you looking lean rather than soft.
- Preserves muscle mass while you lose fat
- Keeps you fuller than carbs or fat per calorie
- Has the highest thermic effect of the three macros
- Supports recovery from training during the cut
How much to aim for
A practical range for fat loss is about 1.6 to 2.2 grams of protein per kilogram of body weight, which is roughly 0.7 to 1 gram per pound. Leaner people and those in an aggressive deficit do well at the higher end. If you carry more body fat, basing the target on a goal weight keeps the number reasonable.
- Aim for 1.6 to 2.2 g per kg of body weight
- Use the higher end in an aggressive deficit
- Base it on goal weight if you carry a lot of fat
- Round to an easy daily number you can hit
Making it practical
Spread protein across three or four meals so each has 30 to 40 grams. Lean toward whole sources like chicken, fish, eggs, dairy, legumes and tofu, and use a shake only to fill gaps. Anchoring every meal with protein is the simplest way to hit the target without thinking hard.