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My 8 kg terrier ate cooked celeriac an hour ago and now has diarrhea — should I monitor at home or call the vet?

Dogs · Food safety

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

Short answer

Cooked celeriac is safe for dogs, but any new food can irritate a sensitive stomach. Monitor her closely over the next 24 hours — if the diarrhea resolves on its own, she should be fine. Watch for signs that warrant a vet visit: blood in the stool, persistent vomiting, lethargy lasting more than a day, or refusal to drink water. Keep her on a bland diet of plain boiled chicken and rice for the next day or two. If she is nursing, extra caution is wise since dehydration affects milk production.

Celeriac — Food safety facts

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

Peeled and cooked, in small pieces.

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

Celeriac is not toxic to dogs. 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.

Celeriac can stay on the rotation, but only as an extra mouthful: keep the rest of the day's food unchanged and watch the next walk and the stool that comes with it.

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

Open the full food page: Celeriac food facts →