Suspect poisoning? US: ASPCA Poison Control (888) 426-4435 · UK: 01202 509 000 · Severe symptoms → nearest emergency vet now.

My cat with a sensitive stomach had diarrhoea after chewing on a raw carrot stick — is carrot a common allergen or irritant for cats?

Cats · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Carrot is not a common allergen for cats, but its high fibre content can cause diarrhoea in some individuals, especially those with sensitive stomachs or when introduced suddenly. Raw carrot is also harder to digest than cooked. While carrots are safe and non-toxic, any new food can upset a cat's digestion. Stop giving carrot, ensure your cat has access to fresh water, and monitor the stool. If the diarrhoea continues for more than a day or your cat acts lethargic, a check-up with your vet is a good idea.

Carrot — Food safety facts

Safe to share · Cats · full breakdown on the linked food page

Safe and great as a crunchy treat. Offer sticks or thin slices to avoid choking.

Dogs and cats carry the same rating (Safe to share), so the notes below hold for either pet.

Carrot is not toxic to cats. The real limit is calories, fat and salt, so treat it as a small extra alongside the normal ration rather than a meal in itself.

There is no poisoning risk here, and the usual problem is simply eating too much at once: a heavy fat or salt load can bring on loose stools or a single vomit. Offer water, keep an eye on the pet for 24 hours, and do not induce vomiting.

The full verdict, portion guidance and serving notes are collected on the Carrot food facts page.

Open the full food page: Carrot food facts →