You don't have to twirl a red cape in front of this bull to get a charge out of it. Red Bull markets its eponymous energy drink around the globe. The nonalcoholic drink contains the amino acid taurine, B-complex vitamins, caffeine, and carbohydrates. Red Bull claims that the human body needs more taurine than it produces naturally during physical exertion -- thus the need for partaking of its beverage. Sales of the drink grew quickly from the beginning and Red Bull now dominates the world's energy-drink market with a 40% market share; 5 billion cans were sold in 2012. Red Bull was founded in 1984 by sports enthusiast Dietrich Mateschitz who reportedly drinks up to 10 cans of it a day.