Pet Health

Is it safe if Cats Eat Tuna? (Vet-Reviewed)

Wondering if it's safe for cats to eat tuna? Our vet-reviewed blog explores the benefits, risks, and tips to keep your feline friend healthy and happy!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Cat curiously sniffing a bowl of tuna fish on a kitchen counter, emphasizing the topic of cat nutrition and safety.

Video Call an Aussie Vet now for just $49 AUD

Dial A Vet is available in Australia, NZ, Canada, United States & Canada!
Speak to A Vet Now

As cat owners, we all want to treat our feline friends to something special now and then. Tuna, with its strong aroma and taste, might seem like an irresistible treat for your cat. But is it safe for cats to eat tuna? This is a question many pet parents ask, and the answer isn’t as simple as you might think. Let’s dive into the details to help you make the best choice for your furry companion.

🩺 Vet Insight

Cats are obligate carnivores, which means they rely on meat-based diets to meet their nutritional needs. Tuna, being a type of fish, might seem like a healthy option. However, while tuna can be okay in small amounts, it’s not an ideal food for your cat’s daily diet. Here’s why:

  • Nutritional Imbalance: Tuna lacks key nutrients that cats need, such as taurine, vitamin E, and specific B vitamins. Over time, a diet heavy in tuna can lead to deficiencies.
  • Risk of Mercury Poisoning: Tuna, especially larger species like albacore, can contain high levels of mercury, which can be toxic to cats.
  • Addiction Risk: Cats can develop a strong preference for tuna, sometimes rejecting their balanced cat food in favor of this treat.

While a nibble of tuna on occasion is unlikely to harm your cat, making it a regular part of their diet can lead to health problems.

⚠️ Ingredients to Avoid

If you’re considering giving your cat tuna, it’s important to avoid certain types of tuna products that can be harmful:

  • Tuna in Oil: The added oil can upset your cat’s stomach and lead to weight gain.
  • Seasoned or Spiced Tuna: Any tuna that contains salt, onion, garlic, or other seasonings is unsafe for cats. These ingredients can be toxic.
  • Tuna with Artificial Additives: Canned tuna meant for humans may contain preservatives or flavorings that are not suitable for cats.

According to the ASPCA, onion and garlic are toxic to cats and can lead to serious health issues, even in small amounts (source).

✅ Safer Alternatives

If your cat loves the taste of fish, there are safer options to consider that can satisfy their cravings while keeping them healthy:

  • Commercial Cat Food with Fish: Many high-quality cat foods are formulated with fish as an ingredient, ensuring they meet your cat’s nutritional needs.
  • Cat-Specific Tuna Treats: Some pet stores sell tuna-flavored treats designed specifically for cats, free from harmful additives.
  • Cooked Fish: If you want to give your cat fresh fish, opt for small portions of cooked salmon or cod. Always ensure the fish is plain and free from seasoning.

These options are not only safer but also nutritionally balanced, providing your cat with the essential vitamins and minerals they need.

💡 Final Advice

In moderation, tuna can be a tasty treat for your cat, but it should never replace a complete and balanced diet. Always prioritize your cat’s nutritional needs and consult your veterinarian if you’re unsure about introducing new foods. Remember, what’s safe for humans isn’t always safe for pets.

If you do decide to give your cat tuna, stick to small, infrequent portions of plain tuna packed in water (not oil or brine). Monitor your cat for any signs of digestive upset or unusual behavior afterward.

Your cat’s health and happiness are worth the effort to make informed choices. By offering safer alternatives and limiting risky foods, you can ensure your feline friend thrives for years to come.

FAQs

Q: Can cats eat raw tuna?
A: Raw tuna is not recommended for cats. It may contain parasites or harmful bacteria that can make your cat sick. Always opt for cooked tuna if you want to share a small treat.

Q: How much tuna is safe for my cat?
A: Tuna should only be given as an occasional treat, no more than once a week, and in small portions (a teaspoon or two). It should not replace a balanced cat food diet.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
Speak to A Vet Now

🐾 You Might Also Like

📈 Popular Pet Topics Right Now