Why?
Hazelnuts aren't known to be toxic, but like all tree nuts they're very high in fat: in larger amounts, they cause vomiting and diarrhea and may contribute to pancreatitis. Small, round and hard, they can get stuck in a cat's throat or gut. They also show up in products that are dangerous for cats, like chocolate hazelnut spreads.
How much?
No hazelnuts, whole, chopped or as a spread. Don't leave hazelnuts in the shell lying around, since your cat could swallow one while playing.
The risks
- Vomiting, diarrhea
- Choking on a whole hazelnut
- Intestinal blockage, especially with the shell
- Chocolate spreads and candies are toxic
Your cat ate some: what now?
One swallowed hazelnut usually isn't serious: watch for vomiting, loss of appetite, a painful belly or no stool over 24 to 48 hours. Call your vet if your cat is coughing or struggling to breathe, or if they ate chocolate hazelnut spread.
Better options
For a crunchy treat, go with cat treats. And for play, a ball or a fabric mouse is a much better toy than a hazelnut.
Common questions
Can cats eat chocolate hazelnut spread?
No. These spreads contain cocoa, which is toxic to cats, plus lots of sugar and oil. If your cat ate some, call your vet and tell them roughly how much.
Is it dangerous if my cat plays with a hazelnut?
It can be: your cat might swallow it during play and choke or end up with a blockage. Put it away and offer a real toy instead.
This information is general and does not replace advice from a veterinarian. If your cat has swallowed something toxic, call your vet or an animal poison control center right away, without waiting for symptoms.