The Best Fish Oil For Cats

It may be a stereotype that cats love fish, but you may not know that it is also beneficial for their overall health. Salmon and other fatty fish are full of nutritious oils that help with skin, coat, and joint health, especially as your cat ages. Whether you prefer to apply a tablespoon of oil to your cat's food or give them daily fish oil treats is up to you. We've rounded up a few of our favorite fish oils to help you pick the best option for your pet.

What to Look For

After researching fish oil for cats, we found the best ones are natural, easy to serve, and designed for daily use. Based on these requirements, our top pick is the Vital Pet Life salmon oil. This fish oil is available in bottles of various sizes, each with a convenient pump for serving your cat. You can top your cat’s food to keep up with their joint, skin, and immune health. We also love the Nordic Naturals fish oil because the concentrated supplement is sourced from wild-caught anchovies and sardines. Keep reading to discover your new favorite fish oil for cats.

Vital Pet Life Wild Alaskan Salmon Oil

Made to last

This large bottle of vitamin-rich salmon oil features a convenient pump for daily portioning.
Best Overall

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Giving your cat a daily dose of salmon oil can get expensive, especially if you have more than one cat at home. Thankfully, Vital Pet Life’s bottle of salmon oil is affordable and will last for months. Sourced from wild Alaskan salmon, this high-quality oil is full of omega fatty acids and other vitamins that will benefit your cat’s skin and coat. Plus, this bottle comes with flip cap and pump options, so you can easily add this nutritious oil to your cat’s daily meals.


  • Decreases shedding
  • Helps with dry, itchy skin
  • Helpful serving guide based on your pet’s weight


  • Your cat may have slightly fishy breath after ingesting

Nordic Naturals Omega-3 Pet Supplement

Powerful and potent

Your cat will only need to take a small amount of this concentrated fish oil to reap the benefits.
Runner Up

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This concentrated fish oil from Nordic Naturals is formulated to support your cat’s joints, heart, skin, and immune health. Made with anchovy and sardine oil, this fish oil is easy to absorb and, surprisingly, has no strong flavor. The small glass bottle comes with a dropper to help you portion out the oil to each of your pets. You can add it directly to your cat’s wet or dry food for a nutritional boost, and we doubt they’ll even notice it’s there.


  • Sustainable product
  • Multiple bottle sizes are available
  • Free from gluten, dairy, preservatives, and artificial flavors


  • It needs to be refrigerated to stay fresh

Essential Pet Products Alaska Wild Salmon Oil Chews

Tasty treat

Even the pickiest of cats won't be able to resist these chewy salmon oil treats.
Best Chews

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If you love to treat your cat, you need to check out these salmon oil soft chews from Essential Pet Products. Each container is tightly sealed for freshness and holds 100 chews that will last a while, no matter your cat’s size. There is a helpful feeding guide on the container, and they are safe for daily consumption. These affordable chews are designed to support your cat’s overall skin and coat health. And your pet will love the delicious flavor and soft texture of these nutritious treats.


  • The small treats are easy to chew
  • Sourced from wild Alaskan salmon
  • Ideal for cats who refuse to eat straight salmon oil


  • These treats often leave behind messy crumbs

Kodiak Naturals Wild Alaskan Salmon Oil

Perfect portions

This squeeze bottle of fish oil won't spill or leak whenever you drizzle it over your cat's food.
Easiest To Serve

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Fish oil can get messy quickly if you don’t have a convenient way to serve it. With this salmon oil from Kodiak Naturals, you can make use of the leakproof squeeze bottle to add a little or a lot to your cat’s meals. Full of omega fatty acids, DHA, and EPA from sustainably-sourced wild salmon, this fish oil is about as pure as it gets. The drip-free cap keeps the bottle clean and prevents fishy odors from seeping into your pantry or wherever you keep your pet’s food.


  • Processed at a low temperature for maximum health benefits
  • Easy to mix with wet or dry cat food
  • Affordable option


  • It can be challenging to dispense an exact amount of oil with this bottle

Iceland Pure Unscented Pharmaceutical Grade Fish Oil

Stench not included

If you can't stand the smell of fish oil, you can still feed your cat with this unscented option.
Best Unscented

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If your cat is picky when it comes to food, it can be challenging to get them to eat smelly fish oil. Iceland Pure’s fish oil for cats is completely scent-free, making it the perfect option for your picky pet. The high-quality oil is sourced from sardines and anchovies. And the bottle features a convenient pump to dispense it directly into your cat’s food bowl. Whether your cat has stiff joints or itchy skin, this fish oil will work hard to help them feel better.


  • It is also safe to feed to dogs
  • Free from toxins, heavy metals, and impurities
  • Doesn’t spoil quickly, especially when stored in the fridge


  • Not as affordable as other options

Frequently Asked Questions

What are the benefits of feeding my cat fish oil?

Fish oil for cats is generally sourced from salmon, pollock, sardines, and anchovies, all high-fat fish. The oil from these fish is high in beneficial vitamins, including omega fatty acids, DHA, and EPA. It has been known to help with skin conditions, such as dry skin, dandruff, and skin allergies, and can help soften your cat’s fur. But on a deeper level, when taken regularly, fish oil can help with joint pain, heart conditions, and overall immune health.

How do I feed fish oil to my cat?

In most cases, fish oil is a literal oil you can pour over your cat’s wet or dry food. If your pet is picky, you can mix the oil into their food to disguise it or pick an unscented option. Most cats love the rich flavor of fish oil, which often encourages them to anticipate their next meal. But if your cat refuses fish oil in their daily meals, there are also chewy treat options that you can give them instead.

About the Author

As a self-professed animal lover, Danielle has always been drawn to furry friends of all shapes and sizes. No matter where in the world she travels, there are always cats, dogs, and other critters ready to receive her love and attention. Danielle’s goal is to provide cat owners with products that will help their pets have long and happy lives.

Why Trust Us

Since 2008, CatTime has provided millions of cat owners with all the information they need to keep their pets happy and healthy. Our experts know exactly what it takes to raise our furry friends and our goal is to help all owners, new or experienced, care for their cats with all the right food, toys, equipment, and accessories.