Energy drinks typically contain high amounts of stimulating chemicals that have an effect on your cardiovascular system. — TNS
Energy drinks are a multi-billion-dollar industry and are the most consumed supplement not under the control of the US Food and Drug Administration (FDA) other than multivitamins.
It’s a bit like the “Wild West” in the sense that energy drinks and their stimulating ingredients are under no US FDA regulation and are not classified as a food or a drug, but as a supplement.
