Depending on your training and physique goals, doing so may be counterproductive. You see, one of the primary ways creatine works is by loading the muscles with water—this is why consuming large amounts of water is such a critical part of effective creatine supplementation. On the other hand, the caffeine included in the typical ECA Stack has a diuretic effect—it draws water out of the muscles and the body. So if you take your creatine simultaneous with your ECA Stack, you’ll tend to cancel out the cell-volumizing effects of the creatine. | 
