Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can Cats Eat Raw Fish? Vet Approved Nutritional Facts & FAQ

Can Cats Eat Raw Fish

While cats are often associated with eating fish, fish may not actually be a major part of their diets. Domestic cats descended from African wildcats, meaning their natural diets would mostly consist of small birds and mammals including small livestock as well as insects, frogs, lizards, fish and sometimes martens, weasels, polecats, and poultry.1

However, domestic modern cats can still safely enjoy eating fish as long as they don’t have any allergic reactions to it. When it comes to serving them raw fish, it’s recommended to refrain from feeding them any raw or partially cooked fish due to health risks. So, it’s important to prepare fish correctly if you plan to give it to your cat.

divider single cat paw oct 2024

Feeding Cats Raw Fish

There are health benefits to feeding cats fish. Fatty fish is a natural source of essential omega-3 fatty acids, which are known to support joint and heart health and support brain development in kittens. Fish is also an excellent source of protein, calcium, phosphorus, and vitamin D.

However, there are some risks that come with feeding cats fish. Certain types of fish can contain high levels of mercury, which can be dangerous for cats. In general, fish that are known to contain high mercury levels include tuna, swordfish, and king mackerel.

On the other hand, there are specific risks associated with feeding cats raw fish. First, there’s the risk of contamination. Fish that hasn’t been cooked thoroughly is more susceptible to parasites and bacteria that cause food poisoning. Secondly, some raw fish contain thiaminase, an enzyme that destroys thiamine or vitamin B1, causing serious neurological problems and leading to convulsions and coma. Cats fed a raw fish diet are at high risk of developing thiamine deficiency. However, this enzyme is destroyed in cooking.

It’s also important to note that fish is a common food allergen for cats. Research has demonstrated that fish is the second most common food source involved in skin food allergies after beef. So, it may not be the best source of protein for some cats, especially if they have food sensitivities or allergies.

grey-british-cat-sitting-near-food-bowl
Image Credit: TarasBeletskiy, Shutterstock

How to Feed Cats Fish Safely

If you have a generally healthy cat that doesn’t have any food allergies, they can safely eat cooked fish. You just need to avoid feeding them raw fish. Your cat can enjoy fully cooked, unseasoned fish if it’s been prepared properly.

First, the USDA food safety guidelines recommend that fish and shellfish be cooked to at least 145°F (62.8 ºC). Cooked fish also shouldn’t be left out for more than 2 hours at room temperature. If the temperature is 90°F and above, cooked fish shouldn’t be left out for more than 1 hour.

The fish should also be prepared without any seasoning or oil. Check for any bones before giving fish to your cat, as bones can be a choking and a foreign body hazard. If you plan to give your cat canned fish, make sure that the fish is in water, not oil. Talk to a vet before adding anything new to your cat’s diet, just to be on the safe side.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

A Healthy Diet for Cats

Cats are obligate carnivores that require protein-rich diets with a moderate amount of fat and minimal carbohydrates. One of the safest and surest ways of getting your cat’s nutritional needs met is to feed them high-quality cat food from a reputable pet food brand. These types of diets have the stamp of approval from the Association of American Feed Control Officials (AAFCO) that ensures they meet or exceed the minimum requirements for cat food nutrition. You can find cat food in several different forms, such as dry, wet, and freeze-dried.

orange cat eating on an orange bowl
Image Credit: Okssi, Shutterstock

Cats and Raw Food Diets

These days, you can find pet food brands that specialize in developing raw food meals for cats. The appeal of these types of foods is that they closely match a cat’s natural diet, and they’re minimally processed. However, just because your cat is eating raw food, it doesn’t mean that all their nutritional needs are being met. So, it’s important to do your research on raw food recipes to ensure that they contain high-quality, nutritious ingredients.

Cat owners should also note that studies have shown that commercially prepared raw pet foods have increased risks of contamination. Cats are more susceptible to food poisoning caused by Salmonella, Listeria, and E. Coli.

divider cat faces oct 2024

Conclusion

While raw fish may seem like a reasonable food to give to cats, it can actually put your cat at risk of food poisoning and vitamin B1 deficiency. If you want to give your cat some fish, make sure that it’s unseasoned and cooked thoroughly. It’s also important to feed your cat a complete and balanced diet specifically formulated for them, and make sure that treats do not make up more than 10% of their diet. It’s best to encourage your cat to eat their regular meals and enjoy occasional treats.

Related Reads:


Featured Image Credit: AALA IMAGES, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Can Cats Eat Cod? Vet Approved Nutritional Facts & FAQ

If you’re a fan of fish and chips, you’re probably already familiar with cod, which is one of the two most common types...

Can Cats Eat Cod

Can Cats Eat Seafood? Vet Approved Facts & Health Guidelines

It’s a popular belief that cats love fish, even though fish are not a natural part of a feline’s diet. Some cats don’t...

Can Cats Eat Seafood

Can Cats Eat Crab? Vet-Approved Nutritional Facts & FAQ

We’ve all been there. You go to crack open a can of crab to make some dip, or maybe whip up some delicious...

Can Cats Eat Crab

Can Cats Eat Liver? Vet-Approved Nutrition Facts

Liver is packed full of vitamins A and B and contains other essential minerals. In small quantities, it is not only safe for...

Can Cats Eat Liver

More related

Can Cats Eat Liver

Can Cats Eat Liver? Vet-Approved Nutrition Facts

Liver is packed full of vitamins A and B and contains other essential minerals. In small quantities, it is not only safe for...

Can Cats Eat Hamburgers

Can Cats Eat Hamburgers? Vet-Approved Feline Treats

Cats are meat-eaters, and what is more carnivorous than a juicy burger made with ground beef, pork, chicken, or other meat? As long...

Can Cats Eat Sardines

Can Cats Eat Sardines? Health Benefits & FAQ

Does your cat come running after the sound of a cracking can of sardines? Most felines are attracted to these tiny fish and...

Can Cats Eat Venison

Can Cats Eat Venison? Important Facts & Health Guidelines 

The word “venison” (from the Latin verb venari, meaning “to hunt”) refers to meat from large game animals, most commonly deer. Though not...

Keep reading

5 Homemade Dry Cat Food Recipes

When it comes to sorting through the brands and styles of cat food on the market, you might be a bit confused about which ingredients are essential in your cat’s diet. Dry cat food is a cost-effective and easily stored...

Homemade Dry Cat Food Recipes

Are Goldfish Plants Poisonous to Cats? Vet-Reviewed Houseplants Examined

Hardy and colorful goldfish plants can make stunning additions to your home. The brightness of the flowers and the movement of leaves can also be an enticing sight to your curious feline. Fortunately, goldfish plants aren’t poisonous to cats and...

Catster_Are Goldfish Plants Poisonous to Cats

Why Does a Comb Make a Cat Gag? Vet-Reviewed Facts & FAQ

Maybe you have seen the videos online or experienced this yourself at home: you flick the teeth of a comb, and your cat gags. Why? Cats are far more sensitive to sounds than humans, and they can hear frequencies that...

a cat that feels sick and seems to vomit

Feline Lower Urinary Tract Disease: Our Vet Explains the Causes, Signs & Treatments

Is your cat urinating frequently? Are they going outside of the litter box? These signs may be vague or quite prominent. Your veterinarian might refer to the cause as feline lower urinary tract disease. Let’s look at some of the...

Ginger cat in blue litter box

8 Best Shampoos for Maine Coon Cats in 2025 – Reviews & Top Picks

It is no wonder the Maine Coon is among the most popular cat breeds in the world. They are known for their sociability and are revered as the gentle giants of the cat world. They come with an uneven, two-layered...

red maine coon in the bathtub shampoo

When Are a Cat’s Teenage Years? Vet-Reviewed Facts & Useful Tips

Just like humans, cats go through a stage that tends to correlate with “teenage” behavior. Some of it is cute and funny, and some of it is irritating and frustrating. Fortunately, the cat teenage years are not all bad, and...

Bengal kitten playing

8 Best Cat Foods With Taurine (2025) – Reviews & Top Picks

When it comes to selecting the best cat food for your precious feline, it can seem like there are way too many options to choose from. While most of us know that a high protein diet is important for our...

tabby cat eating from a bowl outside

Why Did My Cat Have Only One Kitten? 3 Possible Reasons

If your cat mistakenly or intentionally became pregnant, you’re probably excited about the birth. But if the big day comes and you keep checking the mother to see how many little kitties you have to love on, you might be...

mother cat giving birth to her child