There are also two other flavors — Orange Breeze and Tropical Sunrise. All flavors have zero grams of added sugar, 25 calories, and approximately 180 milligrams of caffeine per can. Mtn Dew is partnering with LeBron James to launch the energy drink line that’s supposed to offer a mental boost and immunity support. (Spotted by @CourseURHere at Walmart, Justin at Walmart, and David B at QT.)