Fast Twitch is the first formula specifically designed to fuel fast twitch type II muscle fibers for greater muscular power and gains. Fast Twitch helps increase post workout intensity while enhancing muscular repair. The harder the workout the more Fast Twitch can help. With Fast Twitch you may run out of gym time before you run out of muscle energy. Fast Twitch enables muscles to produce more power resulting in greater heat output. This heat productionis endothermogenic. Increased body heat plus enhanced oxygen consumption after harder workouts boosts metabolism. Raising the metabolic rate can enhance calorie burning.