Tuna is a protein-rich fish but requires caution due to mercury content and high sodium in tinned varieties. Fresh or tinned tuna in spring water without added salt can be offered occasionally, not regularly. Tuna is highly palatable and many dogs love it. The strong flavour means a small amount goes far. Mercury accumulates in larger predatory fish; limit tuna to once or twice weekly at most. Always use tinned tuna in spring water, never in oil or brine. Fresh tuna should be cooked and boneless. The occasional small portion supports coat health via omega-3s. Don't substitute tuna for a balanced meal; use it as a training treat or meal topper. Some dogs become finicky eaters if tuna is offered too frequently.
How to Feed Tuna to Your Dog
Small amount once or twice a week maximum. Tinned in spring water only.
Health Benefits
- ✓ Coat and skin health
- ✓ Muscle support
- ✓ Immune function
How much Tuna can my dog have?
kg
Common Mistakes
Watch out: Owners overfeed tinned tuna, accumulating excess mercury and sodium. Tuna in oil or brine is served without draining or checking salt content. Raw tuna is given, risking parasites. Some owners feed tuna multiple times weekly, not realising mercury builds up. Don't add tuna to every meal; restrict to occasional use.
Frequently Asked Questions
How much tuna can my dog have?
A small amount once or twice weekly maximum. It's a treat, not a staple.
Is tinned or fresh tuna better?
Tinned in spring water is convenient. Fresh cooked is slightly better, but both are fine occasionally.
Does canned tuna in brine contain too much salt?
Yes. Always choose tinned in spring water and drain well.
Can puppies eat tuna?
Yes, in tiny amounts. Start with a teaspoon mixed into food.
Why is tuna limited if it's just fish?
Mercury accumulates in large predatory fish. Frequent feeding increases toxicity risk.