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My 5 kg cat ate a few peas from a chicken stew with onion powder — should I worry?

Cats · Food safety

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

Short answer

The peas themselves are safe. Plain, cooked peas are a fine low-calorie snack for cats. The real concern is the onion powder in the stew, which is toxic to cats even in small amounts. A few peas that touched the sauce could carry enough powder to cause problems. Watch your cat closely for the next 24 hours for pale gums, lethargy, or any vomiting. If you see those signs, call your vet right away. For future treats, offer plain, unseasoned peas you've cooked separately.

Peas — Food safety facts

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

Safe — plain, frozen-then-thawed or cooked peas make a good low-calorie treat.

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

Peas 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.

Peas can stay on the rotation, but only as an extra mouthful: keep the rest of the day's food unchanged and watch the litter box and how quickly they finish the next meal.

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

Open the full food page: Peas food facts →

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