Facts About Energy Drinks

As the beverage market has exploded, so have the claims about metabolic benefits. Here's a look at the main boosts being boasted.

Energy Drink Decoder
Photo: Nigel Cox

Energy Drink Decoder

Energy is something all creatures need and something Americans apparently believe they are in terribly short supply of, as exhibited by the amazing profusion of flavored waters containing antioxidants, electrolytes, vitamins, and shots of caffeine. These drinks—and the ingredients within—can be broken down into a few basic categories.


To provide actual bona fide energy, a drink has to contain calories, and that usually means sugar. If you're concerned about calories—and if that's one reason you're on the treadmill at the gym in the first place—read the labels.

First, check serving size. Some beverages have 2 to 3 servings per bottle or can, so if your drink is not calorie-free, serving size is important. Calories in energy drinks most often come from sugar: 4 calories per gram. A 12-ounce Coke, for reference, has 140 calories.

Second, ask if these are the right kind of calories. The body perceives calories delivered in liquid form as less physiologically satisfying than those found in solid foods. It may be better to drink a noncaloric drink and eat a fiber-rich energy bar.

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