Artificially flavored. Whitens teeth in as little as 4 weeks (Chewing 2 pieces for 20 minutes at least 4x per day after meals helped remove stains). Questions? Call 1-800-524-2854. facebook.com/tridentgum. 35% fewer calories than sugared gum. Calorie content for this serving size has been reduced from 8 to 5 calories. Dispose of properly.