Verdict
Feed only in moderation
Safe amount
Small amounts, occasionally
Species
🐶 Dogs
Why this verdict for dogs
A little plain tuna is fine, but it’s high in mercury and salt and shouldn’t be a regular food.
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Frequently asked questions
Can dogs eat tuna?
In moderation. A little plain tuna is fine, but it’s high in mercury and salt and shouldn’t be a regular food.
How much tuna can dogs have?
Recommended: Small amounts, occasionally. When in doubt, ask your vet.
Is tuna safe for cats too?
Verdicts can differ between species. See the cat answer for tuna →
Related foods
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List
CanMyPet provides general information reviewed against trusted sources (ASPCA, AKC, Pet Poison Helpline). It is not a substitute for professional veterinary advice. When in doubt, always contact your veterinarian.