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My cat snuck a few bites of a pre-washed bagged salad mix that contained arugula — should I be worried about hidden ingredients?

Cats · Food safety

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

Short answer

The arugula itself is safe, but the concern with bagged salad mixes is the other ingredients. These mixes often contain onions, garlic, chives, or dressings that are toxic to cats. Check the full ingredient list for any Allium family members (onion, leek, etc.) or seasonings. If the mix was plain greens with just arugula and maybe spinach, a few bites are likely fine. Watch your cat for vomiting, diarrhoea, or lethargy over the next day, and call your vet if you see any worrying signs.

Arugula — Food safety facts

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

Safe in small amounts as a green treat.

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

Arugula 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 Arugula food facts page.

Open the full food page: Arugula food facts →