With caution — cats and coriander
Coriander (the leaf and stem, also called cilantro) is not toxic to cats. A small amount of fresh coriander leaf is low risk. The seeds are also non-toxic. Some cats show mild behavioural interest in fresh coriander — rolling, licking, or pawing at it in a response that may be related to the presence of similar neuroactive compounds found in catnip. This is not a concern. The main risk with coriander is context: it's a garnish in dishes that often contain garlic, onion, or chilli.
🏆 PawKeen Safety Score™ — Coriander for Cats
"Coriander is an herb I'm fairly relaxed about from a toxicity standpoint. It's not on any feline toxicity list, the compounds in it don't cause the organ-level effects that alliums, citrus oils, or xylitol do, and the occasional cat that shows a catnip-like interest in fresh coriander is expressing a normal neuroactive response to some of the volatile compounds in the herb. The context where coriander becomes a problem is its very common role as a garnish on curries, tacos, and stir-fries — all of which contain garlic and onion."
The straight answer
Coriander is not toxic to cats. A cat that nibbles a few coriander leaves from your herb garden or takes a swipe at the bunch from your supermarket visit is not in danger. The herb is safe in small amounts, and a subset of cats shows genuine interest in fresh coriander — a response that may share some neurological basis with the catnip response.
The practical concern with coriander is the dish it came from, not the herb itself.
Why some cats react to coriander
Catnip's well-known effect on cats is mediated by nepetalactone — a compound in Nepeta cataria that binds to feline olfactory receptors and triggers a temporary euphoric/playful response in roughly 50–70% of cats (the response is genetic and not all cats have it).
Fresh coriander contains several volatile terpenoids — linalool, terpinene, and cymene — that share some structural similarity to nepetalactone and other neuroactive plant compounds. Some cats (particularly those with the catnip-responsive genotype) show mild investigatory, rolling, or licking behaviour around fresh coriander that resembles a subdued version of the catnip response.
This is not dangerous — it's a normal neuroactive response to volatile plant compounds. It does not mean coriander has catnip-level activity; the response is typically briefer and less intense.
Coriander in Australian cooking
Coriander is ubiquitous in Australian multicultural cooking — it appears as a garnish on Vietnamese pho, Thai curries, Mexican-inspired dishes, Indian curries, and Middle Eastern preparations. In virtually every one of these contexts, the dish the coriander garnishes contains garlic, onion, chilli, or some combination of these.
This is the context concern: a cat that ate coriander off the top of your laksa, your chicken tikka masala, or your burritos didn't just eat coriander — they almost certainly ate some of the dish beneath it as well.
| Dish where coriander appears | Concern? | Notes |
|---|---|---|
| Thai green curry | Yes | Garlic, onion, lemongrass-based |
| Indian dhal with coriander | Yes | Typically contains garlic and onion |
| Mexican salsa (salsa verde) | Usually yes | Garlic is a standard salsa ingredient |
| Vietnamese pho | Usually yes | Garlic, onion, and shallots in stock |
| Plain herb garden coriander | No concern | Leaf only, no contamination |
| Coriander-crusted fish or chicken | Check | Salt is likely; garlic is possible |
Coriander seeds
Coriander seeds (dried coriander fruits) have a different flavour and aromatic profile from the leaves — more warm and citrus-adjacent. They are also non-toxic to cats. Whole coriander seeds are small enough to be swallowed without chewing, but this is a minor concern; the seeds are not a choking risk for most cats. Ground coriander in a spice mix is non-toxic in the spice itself, but the overall spice blend it's in often contains garlic powder or onion powder.
🚨 My Cat Ate Coriander — What Now?
Plain coriander is not a toxicity emergency. If the coriander came from a dish containing garlic or onion, call the Animal Poisons Helpline on 1300 869 738 to assess the other ingredients.
Signs that warrant a vet call:
- Mild GI upset from aromatic compounds in the herb if a significant amount is eaten. Most cats either ignore it or show brief investigatory behaviour
If your cat ate a large amount or is showing the signs above: Don't wait — call immediately.
📞 Animal Poisons Helpline: 1300 869 738Available 24/7 across Australia. Have your cat's weight, breed and approximate quantity consumed ready when you call.
Frequently Asked Questions
Dried ground coriander is non-toxic, but spice mixes and blends frequently combine it with garlic powder or onion powder. Check the full ingredient list of any spice blend before considering it safe.
For more on herbs and cats, see our basil guide, our parsley guide, and the cat food safety hub.
📚 Sources & Further Reading
- ASPCA Animal Poison Control — Non-Toxic Herbs. https://www.aspca.org
- Cornell Feline Health Center — Catnip and Related Responses. https://www.vet.cornell.edu
- Russo EB. Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. British Journal of Pharmacology 2011.
- Australian Veterinary Association — Common Household Herbs and Cats. https://www.ava.com.au
