• Until veterinarians know more, limit your cat's tuna consumption to occasional treats of canned chunk-light tuna—not albacore, which is from a larger species of tuna with mercury levels almost three times higher. These rare indulgences should account for no more than 10 percent of your cat's daily calories.


  • Signs of mercury poisoning in cats—loss of coordination and balance, difficulty walking—can mimic other illnesses, including thiamine (a B vitamin) deficiency.

    Secondly, is it OK to give cats canned tuna? While tuna is fine for cats in moderation or as a treat, too much canned tuna can be bad for your cat. Fish is a great source of protein, but there are a few reasons why a steady diet of human-grade canned tuna can cause health problems for your cat.

    Then, is it safe for cats to eat tuna everyday?

    Cats can be addicted to tuna, whether its packed for cats or for humans. Some tuna now and then probably wont hurt. But a steady diet of tuna prepared for humans can lead to malnutrition because it wont have all the nutrients a cat needs. And, too much tuna can cause mercury poisoning.

    How much tuna can a cat eat?

    Everyone knows about the relationship with cats and fish (that is, our kitties love fish, and fish probably arent too fond of cats), but is it safe to pop open a can of tuna when youre looking for a good kitty treat? The short answer is: yes, you can feed your cat tuna, but not too often, and not too much!

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