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Proteins
Can Dogs Eat Tuna?
Occasional treat only - mercury risk
Quick Answer
Yes, but with caution — dogs can eat tuna in limited amounts. Small amounts of tuna are safe occasionally. Regular feeding risks mercury poisoning.
Reviewed by Clawmate Vet Team•Updated February 2026
🐕Specifically for Dogs
Small amounts of canned tuna in water make an occasional high-value treat.
The Full Story
Tuna is high in protein and omega-3 fatty acids, but also accumulates mercury. Cats are particularly susceptible to mercury poisoning from regular tuna consumption. Additionally, tuna is very addictive to cats, potentially causing them to refuse other foods ("tuna junkies"). Use as an occasional treat, not a regular part of the diet.
✓ Safety Tips
- Occasional treat only - not regular food
- Mercury accumulates over time
- Canned in water, not oil
- Cats can become addicted - limit strictly
Recommended Serving for Dogs
Dogs: 1-2 tablespoons occasionally. Cats: 1 teaspoon as rare treat.
Nutritional Benefits
ProteinOmega-3 Fatty AcidsSeleniumVitamin D
Frequently Asked Questions
Can dogs eat tuna?▼
Occasional treat only - mercury risk. Small amounts of tuna are safe occasionally. Regular feeding risks mercury poisoning. Small amounts of canned tuna in water make an occasional high-value treat.
Is tuna safe for dogs?▼
Tuna is high in protein and omega-3 fatty acids, but also accumulates mercury. Cats are particularly susceptible to mercury poisoning from regular tuna consumption. Additionally, tuna is very addictive to cats, potentially causing them to refuse other foods ("tuna junkies"). Use as an occasional treat, not a regular part of the diet.
How much tuna can I give my dog?▼
Dogs: 1-2 tablespoons occasionally. Cats: 1 teaspoon as rare treat.
What are the health benefits of tuna for dogs?▼
Tuna provides: Protein, Omega-3 Fatty Acids, Selenium, Vitamin D. Tuna is high in protein and omega-3 fatty acids, but also accumulates mercury. Cats are particularly susceptible to mercury poisoning from regular tuna consumption. Additionally, tuna is very addictive to cats, potentially causing them to refuse other foods ("tuna junkies"). Use as an occasional treat, not a regular part of the diet.
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Trusted sources: ASPCA Poison Control · Pet Poison Helpline · AVMA Pet Owners