Can Dogs Eat Tuna?

⚠️ Not recommended

Not as a regular food. A little tuna is unlikely to harm, but tuna is high in mercury, so it is best avoided as a treat.

Reviewed by Plan for Paw · Updated October 2026 · 1 source

If your dog ate tuna

A small amount needs no action.

Call your vet or a 24/7 animal poison line now: ASPCA Animal Poison Control (888) 426-4435 · Pet Poison Helpline (855) 764-7661

How to give tuna safely

  • If you give any: a small amount of tuna canned in water, unsalted.
  • Not tuna in oil or brine, or tuna salad.

Sources

General information checked against published veterinary sources. Every dog is different — ask your vet before changing its diet, and call them if it seems unwell.