Is Tuna Toxic to Dogs?
Yes — tuna is mildly toxic to dogs.
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 dogs, 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 dog seems unwell.
Toxic parts
Canned tuna fed often
Toxic compound
Mercury (with frequent feeding)
What to do now
- Remove any plant material from your dog'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 dog 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.
Is your pet covered for emergency vet bills?
Compare pet insurance quotes →
Frequently asked questions
Can dogs eat tuna?
No. Yes — tuna is mildly toxic to dogs.
Is tuna toxic to dogs?
Yes — tuna is mildly toxic to dogs. 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 dogs?
Tuna is only mildly toxic to dogs, 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 dog seems unwell.
What should I do if my dog ate tuna?
Remove any plant material from your dog'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 dog is small, young or elderly.
Related items
More about tuna
- Is tuna toxic to cats? — Mildly toxic
- Is tuna toxic to pets? (all species)
Free printable: 25 pet-safe houseplants + emergency numbers
We only use your email to send the list and occasional pet-safety tips. Unsubscribe anytime. Privacy policy