WHIMZEES have only six, all-natural, primary ingredients. produced to humanfood grade standards with sustainable manufacturing practices. NO artificial ingredients, NO preservatives, NO flavors, NO GMOs, NO gluten, NO Sugar, NO Meat. Low in fat and high in fiber. WHIMZEES promote the kind of dental health that veterinarians and dog owners love. Their unique knobby shapes ensure proper blood flow through the gums, and prevent the build-up of tartar and bad breath. And because they're high in fiber, they also help with digestion.