Less than 2 calories per treat. Natural formula with added vitamins, minerals and taurine. Helps reduce tartar and plaque buildup. 100% nutritionally complete & balanced for maintenance. Feeding Guidelines: Feed as a snack or treat in conjunction with your cat's regular diet. For optimal dental benefit, feed Feline Greenies as a daily treat. Cats 5 to 10 lbs - 6 to 8 pieces/twice daily, Cats 10 to 15 lbs - 8 to 10 pieces/twice daily, Cats over 15 lbs - 10 to 12 pieces/twice daily. Always monitor your pet while feeding a treat. Provide fresh water at all times.