The Best Protein Powder for Muscle Gain Of the nutrition world’s many essential ingredients, none come close to the awesome muscle-building potential of protein. It’s often considered the apex of three vital macronutrients—carbohydrates and fats being the other two. Protein is found everywhere, it seems. Paradoxically, though, it’s one of the most difficult ingredients to consume properly for muscle-building potential. Our cells rely on protein for hypertrophy, but they need quite a lot of it! To push your muscle cells to…