By harnessing the power of muscle specific insulin and food, Anabolic-Pump™ takes natural growth to new levels!* Insulin is the most powerful anabolic hormone produced by the body, while food constitutes the very anabolic building blocks of muscle tissue. Insulin, without a doubt, forces muscle to grow fast. Unfortunately, insulin also forces fat cells to grow faster- yuck! What you end up with is a huge mass of muscle covered in a thick layer of fat. In a Perfect world fat cells would be resistant to the action of insulin.