Can rabbits eat walnuts?
Quick answer: No — walnuts is not safe for rabbits and should never be given.
Quick verdict
Unsafe
Key risk
Too high in fat for a herbivore and can cause digestive upset.
Why
Never feed walnuts to rabbits.
Can rabbits eat walnuts, and why?
Never feed walnuts to rabbits. Too high in fat for a herbivore and can cause digestive upset.
Rabbits are herbivores: roughly 85% of their diet should be good-quality hay or grass, plus a daily handful of leafy greens, with only small amounts of other veg and tiny occasional fruit. They have a sensitive hindgut that depends on constant fibre — sudden changes, sugar or starch can trigger dangerous gut stasis and bloat.
Warning — what to watch for
Too high in fat for a herbivore and can cause digestive upset.
If your rabbit has eaten walnuts, don’t wait for symptoms — contact your vet immediately, or call the Animal PoisonLine on 01202 509000 (24/7, UK). Signs of a problem can include vomiting, diarrhoea, drooling, lethargy, tremors or loss of appetite.
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Frequently asked questions
Can rabbits eat walnuts?
Unsafe. Never feed walnuts to rabbits.
What happens if my rabbit eats walnuts?
Too high in fat for a herbivore and can cause digestive upset. If your rabbit has eaten walnuts, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.
Is walnuts poisonous to rabbits?
Unsafe. Never feed walnuts to rabbits.
Free printable: safe & toxic foods for rabbits
walnuts is just one food — get the full one-page checklist of what’s safe, fine in moderation, or dangerous for rabbits. Vet-sourced, yours to print and keep.
Check walnuts for another pet
Sources
Our verdict on whether rabbits can eat walnuts draws on established UK and US veterinary and welfare organisations. Individual pets, quantities and preparation vary — always confirm with your own vet.