Our litter pellets are made of non-toxic material; however, they are not digestible. If you believe your cat may be eating or chewing on the litter, we recommend monitoring them closely to ensure they are not ingesting large amounts of litter. If a pet is seen eating a large amount of litter pellets, a veterinarian should be consulted and the cat should be observed closely for the next several hours. Plenty of fresh water should be made available.We recommend trying an alternative litter if a cat is chronically eating the Breeze pellets. Please call us if you have any questions.