Mengenix Muscle Rampage One problem many people have when trying to build muscle is certain muscle groups growing slower than others. You can fix this problem with a fill set. This is a set of exercises used in targeting the muscles in question, performed 2 or 3 days after working on the same area.Mengenix Muscle Rampage Look into obtaining a creatine supplement as part of your muscle building plan. Creatine supplements mean you can work out longer and at higher intensity, when you combine them with a diet full of carbs and natural proteins. Consult your doctor to see if creatine supplements are a viable option.Mengenix Muscle Rampage Eat foods rich in protein before you workout and afterwards if you want to grow muscle.