Artificially flavored. Good for your teeth. With Xylitol. Mellow. Extreme. Sugarless gum. Fuse it up! Chew the Mellow pieces with the Extreme pieces and you've created a Fusion of Flavor that's all your own! 35% fewer calories than sugared gum. Calorie content for this serving size has been reduced from 8 to 5 calories.