Is Tuna Toxic to Cats?
Yes — tuna is mildly toxic to cats.
PawSafe Check is for general information only and is not veterinary advice. Always contact your veterinarian or a poison control service if you think your pet has been exposed.
Symptoms to watch for
Tuna is only mildly toxic to cats, so poisoning symptoms are not expected. Eating a large amount of any plant or unfamiliar food can still cause mild vomiting or diarrhea; call your vet if your cat seems unwell.
Toxic parts
Canned tuna fed often
Toxic compound
Mercury (with frequent feeding)
What to do now
- Remove any plant material from your cat's mouth and keep it out of reach.
- Gently rinse the mouth and offer fresh water.
- Call your vet if symptoms persist, get worse, or your cat is small, young or elderly.
Good to know
An occasional bite of plain tuna is fine, but regular feeding can lead to mercury buildup and an unbalanced diet, especially for cats.
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Frequently asked questions
Can cats eat tuna?
No. Yes — tuna is mildly toxic to cats.
Is tuna toxic to cats?
Yes — tuna is mildly toxic to cats. An occasional bite of plain tuna is fine, but regular feeding can lead to mercury buildup and an unbalanced diet, especially for cats.
What are the symptoms of tuna poisoning in cats?
Tuna is only mildly toxic to cats, so poisoning symptoms are not expected. Eating a large amount of any plant or unfamiliar food can still cause mild vomiting or diarrhea; call your vet if your cat seems unwell.
What should I do if my cat ate tuna?
Remove any plant material from your cat's mouth and keep it out of reach. Gently rinse the mouth and offer fresh water. Call your vet if symptoms persist, get worse, or your cat is small, young or elderly.
Related items
More about tuna
- Is tuna toxic to dogs? — Mildly toxic
- Is tuna toxic to pets? (all species)
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