Energy drinks are alleged to just do what the name implies -- provide you with an extra burst of energy. Because it turns out, most of that "vitality" comes from two major elements: sugar and caffeine. A typical power drink can include up to 80 milligrams of caffeine (about the identical amount as a cup of espresso). By comparability, a 2006 research found that the typical 12-ounce soda comprises 18 to forty eight mg of caffeine. Apart from caffeine ranges, how do vitality drinks differ from sodas and sports activities drinks? Soft drinks are primarily water, sugar and flavoring. They do not do anything for your body