Are apples poisonous to dogs and cats?
Safe in small pieces without the core. The seeds and core are best avoided.
Why it's a problem
Apple flesh is a healthy treat for dogs. Remove the core, which can cause a blockage, and the seeds, which contain a small amount of cyanide. A few seeds swallowed by accident are very unlikely to cause harm.
Signs to look out for
- Upset tummy if a lot is eaten
What to do
No action is needed if they ate a slice or two. Call your vet if they swallowed a whole core and are being sick or off their food.
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.