With intake of protein, some calories are used for the purpose of digesting and metabolising the protein itself. Studies show that protein requires more calories to digest and metabolise than carbohydrates and fats. There for making protein the superior macronutrient when it comes to weight management.
Protein makes your burn more calories. Studies show that a high protein intake can boost your metabolism and increase the number of calories burned by up to 100 calories. Higher protein diets have been proven to have a metabolic advantage over diets lower in protein.