which soft drink has most caffeine
Energy drinks contain very high levels of caffeine. A single 5-hour Energy shot contains almost as much caffeine as four 12-oz. cans of Mountain Dew. While many people will tell you that Mountain Dew has the most caffeine of any soft drink, that is incorrect. A 12-ounce (355 ml) can of Mountain Dew has about 55 mg of caffeine, compared to 72 mg in the same amount of Jolt Cola, 69 mg for Pepsi MAX, 63 to 69 mg for Sun Drop, or 59 mg for Sugar-free Mr. Pibb.