I've found lots of discussions about using cat litter as compost, but haven't found any discussions about this: Is it safe to use compost AS cat litter? I've been using a good quality garden compost from my local nursery as cat litter for several months. Cheaper than litter, no switchover problems, no smell -- in fact, I usually just catch that "sweet" compost smell. It doesn't seem to track as badly as other litters. I start out with about an inch in the box and then add more over the week. Then I dump the used stuff in a low-traffic area of the yard (not in the veggie garden). Use a rake to spread it out; might throw some cut grass on top to help accelerate breakdown. So far, I'm liking this. But my vet wonders about possible health concerns for the cat; she wonders if the "fresh" compost from the nursery contains bacteria/pathogens that might be harmful to the cats. I'm thinking No, but only because: Hey, if I use this stuff on my veggie garden, how harmful can it be to my cats? Is it reasonable to assume that the compost I buy at a nursery is safe for the cats to use?