Fat Burner

Thermogenics are also commonly referred to as Fat-Burners or E/C/A Stacks (The letters stand for Ephedrine, Caffeine, and Aspirin, although Aspirin is rarely used today). These substances are designed to help promote lipolysis in the body (the breaking down of body fat to be used as energy). They also stimulate the body's Central Nervous System, which is why you may feel mentally alert or the "jitters" after popping one of these babies.