Core Max Ultra Make sure your diet fits in with your training routine. Muscle building requires a diet high in protein and lower in fat. Don't be under the assumption that this means you can overeat; it simply means that you need to follow a healthy balanced diet. Vitamins and supplements can help increase muscle mass more quickly.Core Max Ultra Have a protein-rich snack before and after muscle-building workouts. For example, try consuming 15 grams of protein 30 minutes before your workout, and following up with another 15 grams of protein post-workout.