Pyruvate is part of different yet related biochemical processes in the body including being triggered by ATP formation and in the fueling of fat burning (it serves as a catalyst for the metabolic breakdown of stored fat) so it kind of makes sense to take it. Some people may have had some good luck in taking it, but I didn't. It might very well be a great thing to take long term...I have no idea, I stopped after 2 months with minimal results.