Red Bull® The Summer Edition Energy Drink Grapefruit Twist. Artificially flavored. Vitalizes body and mind®. 160 Calories per can. 12 fl oz (355 ml). The taste of grapefruit - artificially flavored. The wings of red bull. Red bull is appreciated worldwide by top athletes, busy professionals, college students and travelers on long journeys. Calorie content: 114 mg/12 fl oz. Please recycle. www.redbull.com. © 1996, 2013.