Adherence

High protein intake is the most satiating macronutrient per calorie and promotes weight loss and fat loss when combined with calorie restriction, primarily by preserving lean mass and increasing energy expenditure.

Eating more protein helps you feel full and lose weight, especially if you are also eating fewer calories or exercising. It helps keep your muscles while you lose fat. However, just eating protein without exercise won't necessarily make you a better athlete or significantly stronger.