Artificially flavored. Proven to remove stains and whiten teeth (based on an 8-week clinical test). Questions? Comments? Call 1-800-WRIGLEY (1-800-974-4539). Do your part! 35% fewer calories than sugared gum. Calorie content has been reduced from 8 to 5 calories per two piece serving. Chewing 2 pieces of Orbit White after eating and drinking helps remove stains and whiten teeth (based on an 8-week clinical test).