Can cats eat canned tuna safely or is it bad for them?

Yesterday, I gave my cat a little canned tuna as a treat, and she absolutely loved it. I’ve always assumed it’s fine since it’s just fish, but I’m wondering if it's actually safe for her to eat regularly or if it could cause any health issues. Could you advise on how much tuna is safe for cats, or if I should be cautious with it?

Answer

Feeding your cat tuna as an occasional treat is generally safe, but regular consumption may lead to health issues. Tuna can be high in mercury and may not provide the balanced nutrition cats need.

  • Feeding tuna as a treat is okay in moderation
  • Tuna lacks essential nutrients that cats need for a balanced diet
  • Beware of mercury levels found in some tuna varieties

While cats often love tuna, it should not take the place of a nutritionally complete and balanced cat food. Tuna doesn't contain all the essential nutrients that cats need, and feeding it too often could lead to nutritional deficiencies or imbalances. It's also important to consider mercury content, which can be found in higher levels in some types of tuna. We suggest offering tuna only occasionally and ensure it's the kind that's packed in water and not oil or with added salts or flavorings. If ever in doubt, it's best to monitor the portions and frequency and consult with a vet.

Book a consultation with a licensed vet at Dial A Vet for just $49 AUD if you're unsure or symptoms are getting worse.

Frequently Asked Questions

  • Can too much tuna be toxic to my cat?

    Yes, feeding excessively large amounts of tuna may be harmful due to high mercury levels. It's best to offer it in moderation.

  • What are the signs of too much tuna in my cat's diet?

    Symptoms may include a lack of coordination or balance, as excessive mercury can affect neurological functions. Keep an eye out for changes in behavior.

  • Is there a better fish alternative to feed my cat?

    Salmon or sardines in small amounts can be a good alternative, as they are generally lower in mercury. Always ensure the fish is cooked and free from added seasoning.

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