The original smart-treat. Cleans teeth! Freshens breath! Natural formula with added vitamins, minerals and taurine. Less than 2 calories per piece. Helps reduce tartar and plaque buildup. 100% Nutritionally complete & balanced for maintenance. Feline Greenies Dental Treats are formulated to meet the nutritional levels established by the AAFCO Cat Food Nutrient Profiles for maintenance of adult cats. Made in the U.S.A.