Can Dogs with Kidney Disease Eat Tuna?

Disclaimer: The content on is for informational purpose only. It is not intended to be a substitute for professional veterinarian advice, diagnosis, or treatment. Always seek the advice of a veterinarian when in doubt.

Tuna is one of several ingredients that can be bad for dogs that suffer from kidney disease and other chronic health conditions. Dogs that are affected by such health conditions and diseases typically need to maintain a strict diet to avoid aggravating any major symptoms. Taking this step is important for increasing the longevity of your pet’s life. Some studies suggest that pets with kidney disease-specific diets may live twice as long as those that eat a regular diet.

Of the many edible fish species you could pick from, tuna is one that isn’t recommended for dogs with kidney disease (and something you wouldn’t recommend in general).

Ideally, a diet oriented for dogs with chronic kidney disease should see a reduced intake of protein, phosphorus, and sodium, while seeing an increased intake of dietary omega-3 fatty acids.

Tuna indeed is an excellent source of omega-3 fatty acids but it’s also packed with animal protein. Other dangers associated with tuna, especially the canned ones, is the presence of sodium, especially if the tuna is stored in brine. Our recommendation is to find your dog an alternative source of omega-3 fatty acids. Other fish species like salmon could be a safer choice.


  • jp | 05/11/2022

    this article contradicts what a number of other articles online say about canned tuna. They say that can tuna packed in freshwater is a good addition to a dog’s diet that has renal failure.

    Why do you say this is not a good food item for dogs?

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