Can cats eat canned tuna in oil?

No, oil-packed tuna is too fatty and can cause digestive upset or pancreatitis. The oil also adds unnecessary calories. Always choose tuna packed in water with no added salt.

How much tuna can I give my cat?

A good rule is no more than one tablespoon (about 1/3 of a small can) per 10 pounds of body weight, once a week. Smaller cats should get even less.

Can kittens eat tuna?

Kittens have sensitive digestive systems and need a complete growth diet. Avoid tuna for kittens under 1 year old unless advised by your vet for a specific medical reason.

Is tuna bad for cats with kidney disease?

Tuna is high in phosphorus and can be harmful to cats with kidney disease. Also, the risk of mercury and dehydration from tuna juice can worsen kidney issues. Consult your vet before offering any fish.

Can cats eat tuna every day?

No, tuna should stay an occasional treat. Daily tuna can cause nutritional imbalances and fussiness, and too much oily fish risks a painful condition called steatitis.

Is tuna in brine or oil safe for cats?

Choose tuna in spring water instead. Brine is too salty and oil adds excess fat. Always drain it well before offering a small amount.

Can Cats Eat Tuna? Safety, Benefits & Risks

Is Tuna Safe for Cats? A Vet’s Perspective

Let’s face it, cats love tuna. That frantic meowing when you open a can is hard to resist. But I often get asked by concerned owners: can cats eat tuna? The short answer is yes, in moderation, but there are important caveats. Tuna can be a tasty treat, but it should never replace a complete and balanced cat food. Prolonged or excessive feeding can lead to health issues, so let’s break down the risks and benefits.

The Risks of Feeding Tuna to Cats

Mercury Poisoning

Tuna is a large, predatory fish that accumulates mercury in its tissues. While a small amount occasionally is unlikely to cause harm, regular consumption can lead to mercury buildup in your cat. Symptoms of mercury poisoning include loss of coordination, tremors, and vision problems. To minimize risk, choose light tuna (skipjack) over albacore or bigeye, which have higher mercury levels. And limit tuna treats to once a week at most.

Nutritional Imbalances

Tuna lacks essential nutrients cats need, like taurine, vitamin E, and certain fatty acids. If tuna makes up a large part of their diet, your cat could develop deficiencies. A condition called steatitis (inflammation of fat tissue) can occur if your cat eats too much oily fish without enough vitamin E. This is painful and requires veterinary treatment. Always ensure your cat’s main diet is a complete, AAFCO-approved cat food.

Addiction and Picky Eating

Many cats become addicted to the strong smell and taste of tuna. They may refuse their regular food, holding out for the good stuff. This can lead to malnutrition if they stop eating their balanced diet. If your cat becomes a tuna junkie, you may need to gradually wean them off by mixing tiny amounts of tuna into their food and slowly reducing it.

Benefits of Tuna for Cats (When Given Properly)

Tuna is not all bad. In small amounts, it can be a useful tool for various purposes:

Hiding medication: The strong flavor can mask pills or liquid meds.
Appetite stimulation: If your cat is sick and not eating, a teaspoon of tuna juice or flakes may entice them to eat.
Bonding treat: Sharing a small piece as a special reward can strengthen your bond.
Hydration: Tuna packed in water (not oil or brine) adds moisture to their diet, which is great for cats prone to urinary issues.

How to Safely Feed Tuna to Your Cat

Follow these guidelines to keep your cat healthy:

Choose the right tuna: Only feed tuna packed in water, with no added salt, oil, or spices. Avoid tuna in brine or oil (too much sodium or fat).
Portion size: For an average 10-pound cat, give no more than a tablespoon (about 1/3 of a small can) once a week. For smaller cats, even less.
Preparation: Drain the water (or use the water as a treat) and flake the tuna into small pieces. No bones or skin.
Monitor for allergies: Watch for vomiting, diarrhea, or itching after feeding. If you see any signs, stop and consult your vet.
Stick to treats: Tuna should be an occasional treat, not a dietary staple. 90% of your cat’s calories should come from balanced cat food.

Healthier Alternatives to Tuna

If you want to give your cat a fishy treat without the risks, consider these options:

Commercial cat treats: Look for single-ingredient freeze-dried fish treats (like salmon or sardines) that are formulated for cats.
Canned fish in water: Skipjack tuna, salmon, or mackerel (boneless, no salt) can be safer choices due to lower mercury.
Homemade options: Plain cooked chicken, turkey, or beef (no seasoning) are excellent low-mercury treats.

Remember, every cat is different. If your cat has health issues (kidney disease, pancreatitis, or food allergies), always check with your veterinarian before introducing new foods.

When to Consult Your Vet

If your cat accidentally eats a large amount of tuna or shows concerning symptoms like lethargy, vomiting, or loss of appetite, contact your vet. Also, if you’re unsure about the best diet for your cat’s specific health needs, a professional consultation is always the safest route.

In conclusion, tuna can be a fine occasional treat, but it’s not a balanced meal. Prioritize your cat’s long-term health by keeping tuna as an infrequent flavorful bonus, not the main course.

Key Takeaway

Feed tuna only as an occasional treat in water-based form, and always prioritize a complete, balanced cat food for your cat’s daily nutrition.

Sources

AKC
ASPCA

What you need to know

Cats often adore tuna, and a small amount of plain, cooked tuna or tuna canned in spring water can be a tempting treat. The trouble is that tuna meant for humans is not balanced for cats and should never become a main meal. Used too freely it can lead to a fussy cat that refuses proper food, and over time may cause nutritional imbalances, including too much unsaturated fat and not enough vitamin E.

Choose tuna in water rather than brine or oil, drain it well, and keep portions to an occasional teaspoon-sized treat. Avoid flavoured pouches and anything with added salt or sauces. Regular large servings of oily fish have been linked to a painful condition called steatitis. If your cat will only eat tuna and shuns its normal diet, or you notice any discomfort, speak to your vet about a balanced approach.