All those who are spending money on those energy sports drinks are just wasting their money-as they just end up consuming lots of extra calories, warns an expert.
Nick Hudson, national fitness manager for Virgin Active said while the drinks may be suitable for people training for events such as marathons, those doing workouts of less than two hours did not really benefit from the drinks.They're certainly useful for people who compete in very long distance events," the Scotsman quoted him as saying.
"Your body is generally thought to be able to store enough glycogen (a form of glucose] to last roughly two hours and marathon runners swear by them.
"But those doing shorter, more intense workouts don't really benefit physiologically," he said.
Hudson said people aiming to lose weight should avoid the drinks altogether, or opt for a low-calorie version.