Scientifically known as 2,4-dinitrophenol, the chemical actually does make people lose weight. Only it does so in a terrifying way. It decouples the two reactions that the cells' powerhouse, its mitochondria, use to turn food into energy. Starved for resources, the cells in the body start consuming fat in the body. So far, so good, right? But what happens to all that energy the mitochondria would have made?