Now you can get your dog a dental treat that cleans teeth, freshens breath, and decreases plaque buildup! Made with human grade ingredients with a delicious chicken flavor dogs love! Greenies also reduce tartar & plaque buildup on teeth and enhances gums. Proven to reduce dental calculus build up by 87% in a recent study. Some chew products contain other inert materials which are not digestible. All ingredients in Greenies the original smart-treat are highly digestible and, except for the palatability enhancer, are used in human food products. HIGHLY NUTRITIOUS & TOTALLY EDIBLE!