Science In Sport Smart 1 is a carbohydrate energy drink mix with electrolytes, antioxidants, carnitine & caffeine. Combining caffeine & carbohydrate works as driver in carbohydrate metabolism & can help give athletes a timely boost over short distances or towards the end of longer endurance events. Energy drinks are a beverage designed to help athletes rehydrate, as well as replenish electrolytes, carbohydrates, & other nutrients, which can be depleted during & after training or competition.