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

Is moldy cabbage that was left out overnight dangerous for my 10 kg dog if he ate a few bites?

Dogs · Food safety

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

Short answer

Yes, moldy cabbage is dangerous. Mold can produce toxins that cause vomiting, tremors, or seizures, and cabbage left out can also grow harmful bacteria. Even a few bites warrant a close watch for stomach upset, drooling, or any neurological signs like wobbliness. Offer your dog plenty of fresh water, and if you notice any unusual behavior, call your own vet promptly.

Cabbage — Food safety facts

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

Safe in small cooked or raw pieces. Large amounts cause gas and bloating.

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

Cabbage 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.

Why these cautions matter

Raw animal protein carries Salmonella and E. coli risk, and those bacteria can spread to the people in the household too.

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

Open the full food page: Cabbage food facts →