Can cats eat Cinnamon?
Caution. A small amount of ground cinnamon dusting a biscuit isn't acutely toxic, but cinnamon oil and concentrated cinnamon powder cause mouth irritation, vomiting, and liver effects in larger amounts. Cinnamon sticks are choking/obstruction risks.
Content compiled with reference to guidance from the Blue Cross, PDSA, Royal Veterinary College (RVC), Battersea, and Animal PoisonLine. This site does not provide veterinary advice — always consult a vet. Last reviewed: 27 September 2026.
Key facts
- Verdict: Caution — some risk involved. See the detail below before giving cinnamon to your cat.
- Category: Seasoning
- Onset: Signs can start 0–12 hours — see the full timeline below.
If your cat has eaten cinnamon
- For trace amounts: monitor.
- For larger ingestions or cinnamon sticks: call your vet.
- For cinnamon essential oil exposure: urgent vet contact — treat as essential oil poisoning.
What's the full picture?
Cassia cinnamon (the type sold in most UK supermarkets) contains coumarin, which is toxic to cats at sustained exposures. Ceylon cinnamon has much less. A trace dusting is unlikely to harm; a spoonful or a swallowed stick is a concern.
Cinnamon essential oil — used in diffusers or 'natural' cleaning products — is very concentrated and is outright dangerous.
The 'cinnamon challenge' of swallowing powdered cinnamon is dangerous for humans and would be much worse for cats — aspiration causes respiratory problems.
Symptoms to watch for
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Questions owners ask
How much cinnamon is actually dangerous to a cat?
A light dusting on a biscuit or in baking is unlikely to be acutely toxic to a cat in a one-off exposure. The concern builds with repeated or larger amounts — cassia cinnamon (the common UK supermarket type) contains coumarin, which is toxic to cats with sustained exposure over time rather than a single trace amount, and a whole swallowed cinnamon stick adds a separate choking and obstruction risk.
Is cinnamon essential oil as risky as the spice itself?
Yes, considerably more so. Cinnamon essential oil, used in diffusers or 'natural' cleaning and pest-control products, is a much more concentrated exposure than the ground spice and is genuinely dangerous — it shouldn't be used in a cat household regardless of how the powdered spice is tolerated in small culinary amounts.
Is Ceylon cinnamon safer than the cassia cinnamon in most UK supermarkets?
Yes, meaningfully — Ceylon cinnamon contains much lower levels of coumarin, the compound of most concern with sustained cinnamon exposure, compared to cassia cinnamon. This matters more for repeated or larger exposures than a single trace dusting, where the difference between types is less significant either way.
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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