They promise to "let your man out," enable you to "party like a rock star," and help you "when slowing down isn't an option."
Energy drinks - chock full of sugar and caffeine and with names like Monster, No Fear, and Gorilla Juice - first appeared six years ago in dance clubs in New York City and Los Angeles.
Today the $3.5 billion energy-beverage market is 6 percent of the nonalcoholic beverage industry, which includes soft drinks. That's up 75 percent since last year and is expected to top $10 billion by 2010 - thanks to peppy consumer demand and profit margins that are three times that of soda.
Promoted by pro wrestlers and extreme-sport athletes, energy drinks are appearing in office cubicles and at youth soccer matches. Teens guzzle them at school. Truck drivers and computer programmers may tap them when working late at night.
What appears to be a new trend is actually a throwback to the early days of carbonated beverages, notes John Craven, editor of the beverage website BevNET. At the turn of the last century, sodas were sold in pharmacies for medicinal purposes.
Though clearly not medicine, some of today's energy-drinks carry lofty messages that deal with performance enhancement, added vitality, and even weight loss. Those claims, targeted mostly at teenage and 20-something males, irk health professionals. Advertising for energy drinks can be misleading, particularly when they "are used as a substitute for proper rest, nutrition, and exercise," says Roberta Anding, spokeswoman for the American Dietetic Association. (ADA) "They're really stimulant drinks."
The US Food and Drug Administration recommends that beverages contain less than 65 milligrams of caffeine per 12 ounces of liquid. Yet, because caffeine has the FDA's GRAS ("Generally Regarded as Safe") status, the agency does not provide a daily recommended allowance. Nor does the FDA make any special recommendations for kids, though some studies show that kids react differently to caffeine than adults.
Colas, such as Coke and Pepsi, both of which contain about 40 milligrams of caffeine per serving, fall within FDA guidelines. A 12-ounce cup of brewed coffee, however, has about 200 milligrams.