Since the 1997 introduction of Red Bull, energy drinks have seen exponential growth, outpacing nearly every other offering in the beverage market. From supermarkets to gas stations to drug stores, Red Bull, Five Hour Energy, Monster, Rockstar and other similar products dominate prime display space on shelves and in coolers. Responding to this placement and extensive advertising, consumers now spend more than $9 billion per year on energy drinks.But do we really know what we are buying? Are these drinks safe? Do they carry health risks?Before you reach for that magic bottle that promises enhanced alertness, concentration and physical performance, you need the facts.QUIZ: Are You Eating & Drinking For Your Healthy & Beauty?