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Can rabbits eat mustard?

Unsafe

Quick verdict

Unsafe

Key risk

Mustard is spicy and an irritant, harmful to rabbits.

Why

Rabbits must never have mustard.

Can rabbits eat mustard, and why?

Rabbits must never have mustard. Mustard is spicy and an irritant, harmful to rabbits.

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

Mustard is spicy and an irritant, harmful to rabbits.

If your rabbit has eaten mustard, 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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More foods rabbits might eat

Make treat time better

Handy kit for feeding rabbits well:

Frequently asked questions

Can rabbits eat mustard?

Unsafe. Rabbits must never have mustard.

What happens if my rabbit eats mustard?

Mustard is spicy and an irritant, harmful to rabbits. If your rabbit has eaten mustard, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.

Is mustard poisonous to rabbits?

Unsafe. Rabbits must never have mustard.

Check mustard for another pet

General guidance based on established veterinary sources (ASPCA, PDSA, Blue Cross, RSPCA), not a substitute for advice from your vet. If you’re ever unsure, or your pet has eaten something harmful, contact your vet or the Animal PoisonLine on 01202 509000.