Monster Ultra Fiesta Mango is a refreshing zero-sugar energy drink with a vibrant tropical mango flavor and a light, crisp taste. It blends juicy mango notes with Monster’s signature energy formula, creating a smooth, less-sweet beverage that delivers strong energy without added sugar. Formulated with caffeine, taurine, ginseng, L-carnitine, and B-group vitamins, it helps boost alertness, enhance focus, and reduce fatigue. A typical can contains around 150–160 mg of caffeine with only about 10 calories and 0 g sugar, making it a lighter alternative to traditional energy drinks.