Biodegradable foam peanuts are nontoxic, they are also safe for humans and pets if ingested, but they taste terrible. Don't ask me how I know.
Well ......... I was young, foolish and they kinda look like popcorn .......... Now I'm older (only in body), but little less foolish.
I don't have a cat....NYAHH-NYAHH(course I've had my sister's two catsa and brother-in-law's one cay here for "Visitation Rigthts"......nice csts.