Can cats eat Mushrooms?
No. UK wild mushrooms range from 'safe' to 'rapidly fatal' and are not identifiable without expertise — treat any garden or woodland mushroom ingestion as a medical emergency. Shop-bought cooked button mushrooms are low-risk but not useful.
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Key facts
- Verdict: No — dangerous to cats. Mushrooms should never be given deliberately.
- Category: Vegetable
- Onset: Signs can start 0–6 hours (most species) — see the full timeline below.
- If it's already happened: Call your vet now, or the Animal PoisonLine on 01202 509000 (24/7, charges apply) — see the emergency steps below.
If your cat has just eaten mushrooms
- Move your cat away from the mushrooms.
- Don't induce vomiting at home — this is dangerous in cats.
- Call your vet or out-of-hours emergency vet immediately.
- If you can't reach a vet, call the Animal PoisonLine on 01202 509000 — 24/7, charges apply.
- Note how much mushrooms was eaten, when, and your cat's weight.
What's the full picture?
Cats rarely eat mushrooms intentionally, but can nibble lawn mushrooms out of curiosity, especially kittens. British gardens after autumn rain can produce a surprising number of species, and some — death caps (Amanita phalloides), false morels, and several smaller species — cause liver failure or seizures.
Don't try to identify a mushroom from a field guide if your cat has eaten one. Photograph it (top, underside, stem) and go straight to your vet with the photos and, if possible, a sample in a paper bag (not plastic).
Commercial cooked mushrooms from a supermarket — plain button, chestnut, or portobello — aren't acutely toxic but aren't a useful food for cats either.
Symptoms to watch for
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Cat owner essentials
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A cat water fountain encourages drinking, which supports the kidneys — worthwhile for any cat that's had a dietary scare.
Recommended for cat owners
Related
Sources referenced for this guidance
- Veterinary Poisons Information Service (VPIS) — UK clinical toxicology reference used by vets
- International Cat Care — feline-specific clinical guidance
- BSAVA — British Small Animal Veterinary Association reference materials
- Merck Veterinary Manual — professional veterinary reference
About this guidance
Every entry on this site is compiled from published UK veterinary toxicology sources — International Cat Care, Veterinary Poisons Information Service (VPIS) references, RCVS-registered practice materials, and peer-reviewed feline medicine literature. Where the evidence is mixed, we err on the cautious side because cats are unusually sensitive to many common substances that are harmless to humans and even to dogs.
This is general information written for UK cat owners. It is not personalised veterinary advice for your specific cat, their age, weight, medical history, or the exact exposure you're dealing with. If your cat has eaten something or is unwell, call your vet first. The Animal PoisonLine on 01202 509000 is available 24/7 for a small fee and can tell you whether an emergency visit is needed.
Entries are reviewed and updated as new research emerges. Spotted an error? Let us know — corrections are investigated and applied within 24 hours. For more context on how we work, see about and our full disclaimer.
Last reviewed: · By the What Can My Cat Eat? editorial team