Naturally & artificially flavored. Every 60 seconds.com Xbox One. Middle - Earth Shadow of War. 170 calories per bottle. Low sodium. Caffeine Content: 113 mg/20 fl oz. Mountaindew.com. Product questions? 1-800-433-2652. Please recycle. ESRB Rating Pending: May contain content inappropriate for children. Visit www.esrb.org for rating information.