Carbohydrate for Muscle Mass
Unlike a cut, where you need to cut down on carbohydrates, those on a bulk can and should enjoy plenty of carbs. Hence, the harder you can train, the more likely you are to build mass. Stick to wholegrains as opposed to processed refined carbs which quickly spike blood sugar and can be stored as fat.
However, post-training simple carbohydrates are useful. They quickly spike insulin levels – and insulin increases protein synthesis and decreases muscle breakdown.