Can pets eat spring onion? 🧅
Here’s whether spring onion is safe for each kind of pet, based on established veterinary guidance.
Can dogs eat spring onion?
UnsafeSpring onions are toxic to dogs and must never be given.
Risk: Like all onions, they damage red blood cells and can cause life-threatening anaemia.
Full guidance: can dogs eat spring onion? →Can cats eat spring onion?
UnsafeSpring onions are highly toxic to cats.
Risk: Allium compounds destroy red blood cells; cats are especially sensitive, so avoid completely.
Full guidance: can cats eat spring onion? →Can rabbits eat spring onion?
UnsafeNever give spring onion to rabbits.
Risk: All allium vegetables are toxic and can cause blood disorders and digestive upset.
Full guidance: can rabbits eat spring onion? →Can guinea pigs eat spring onion?
UnsafeSpring onions are toxic to guinea pigs and must be avoided.
Risk: Allium compounds damage red blood cells and cause serious illness.
Full guidance: can guinea pigs eat spring onion? →Can hamsters eat spring onion?
UnsafeNever give spring onion to hamsters.
Risk: Toxic allium compounds damage red blood cells; extremely dangerous in a small animal.
Full guidance: can hamsters eat spring onion? →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.