Ultimate Male Energy - Bonus Size - Helps to increase the body’s natural production of testosterone, maintain prostate health, and assists in the reduction of abdominal fat when combined with regular exercise. Restoring testosterone to optimal levels has been proven to: increase muscle mass (which sets the stage for a decrease in body fat); boost brain function, including memory, visual acuity and concentration, strengthen the bones, lower insulin and protect the heart-reducing virtually every cardiovascular risk factor, including high cholesterol, high blood sugar, abnormal clotting and stress.