Marketed as one of the first energy drinks by a major brand, it was formulated with guarana and caffeine. By 1999, the beverage had developed a loyal fanbase, but Pepsi decided to pull the plug ...

It also contains caffeine, which makes it a popular ingredient in energy drinks. Caffeine is well-known for stimulating your central nervous system, waking you up, and helping you focus.

Energy drinks typically contain high levels of caffeine, sugar, and other stimulants like taurine and guarana. In warm ...