Carbohydrates and protein are both essential macronutrients that the body requires to sustain energy and health. Still, the battle of carbs vs. But you just might be surprised at how much they can impact you bulking up process. Carbohydrates provide the glycogen your body needs to do the resistance training required for muscle mass gains. While protein does provide some of the building blocks, carbs enhance this process. So one isn't better than the other