Are acorns and oak leaves poisonous to dogs and cats?
Can upset the stomach and damage the kidneys if lots are eaten.
Why it's a problem
Acorns contain tannins that irritate the gut and, in large amounts, can damage the kidneys. Whole acorns can also cause a blockage.
Signs to look out for
- Being sick
- Diarrhoea, sometimes with blood
- Tummy pain
- Being off food
What to do
Small amounts often only cause an upset tummy. Call your vet if your pet ate a lot, is small, or shows any of the signs above.
Getting help
Call your own vet first. If they're closed, their phone line will tell you who covers out of hours. The Animal PoisonLine (01202 509 000, a charge applies) gives 24-hour advice to owners.
This page is general guidance, not a diagnosis. Every pet is different, so always follow your vet's advice.