Why this verdict for cats
Eating a little litter is usually harmless for cats, but a cat eating a lot may be unwell, and clumping litter can cause a digestive blockage — mention it to your vet.
Warning signs to watch for
- Constipation
- Vomiting
- Lethargy
Be ready for the unexpected
Compare top-rated pet insurance plans covering accidents, illness and emergencies.
Frequently asked questions
Can cats eat cat litter?
In moderation. Eating a little litter is usually harmless for cats, but a cat eating a lot may be unwell, and clumping litter can cause a digestive blockage — mention it to your vet.
How much cat litter can cats have?
None — cat litter is not safe for cats and should be avoided entirely. When in doubt, ask your vet.
Is cat litter safe for dogs too?
Verdicts can differ between species. See the dog answer for cat litter →
More household items for cats
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List