Can pets eat acorns? 🌰
Here’s whether acorns is safe for each kind of pet, based on established veterinary guidance.
Can dogs eat acorns?
UnsafeAcorns are poisonous to dogs and must never be eaten.
Risk: Tannins and gallotannins can cause vomiting, diarrhoea and kidney or liver damage, and whole acorns can cause blockages.
Full guidance: can dogs eat acorns? →Can cats eat acorns?
UnsafeAcorns are toxic to cats and must be avoided.
Risk: Tannins can cause stomach upset and organ damage.
Full guidance: can cats eat acorns? →Can rabbits eat acorns?
UnsafeNever let rabbits eat acorns.
Risk: Tannins are toxic and can cause serious illness; oak leaves are also harmful.
Full guidance: can rabbits eat acorns? →Can guinea pigs eat acorns?
UnsafeAcorns are toxic to guinea pigs and must be avoided.
Risk: Tannins can cause severe poisoning.
Full guidance: can guinea pigs eat acorns? →Can hamsters eat acorns?
UnsafeNever give acorns to hamsters.
Risk: Tannins are toxic and dangerous in such a small animal.
Full guidance: can hamsters eat acorns? →Worried your pet has eaten too much?
Contact your vet straight away, or call the Animal PoisonLine on 01202 509000 (24/7, UK). This page is general guidance based on veterinary sources and isn’t a substitute for professional advice — amount, preparation and your pet’s health all matter.