6 Best Fish Oil Supplements for Cats [2024]

| Published on December 30, 2023

Looking for the best fish oil for your cat? As a health-conscious pet parent, you strive to ensure optimal wellness for your feline friend. One way to boost their health is through fish oil supplements, rich in Omega-3 fatty acids known to improve cats’ skin, coat, joints, and cardiovascular health. However, with the plethora of options available, selecting the best can be daunting. In this article, we review top-rated fish oil supplements for cats, breaking down their benefits, drawbacks, and ingredients to help you make an informed decision. Elevate your cat’s health game with our guide to the best fish oil supplements on the market.

#1 – iHeartCats Salmon Oil for Dogs and Cats – Nourishing Skin & Coat Omega 3 Fish Oil for Dogs Supports Allergy & Itch Relief, Heart Health and Joint Health – 32 oz

The iHeartDogs Salmon Oil for Dogs and Cats is a single-ingredient omega fatty acid source that supports a healthy immune system, heart health, joint health, and healthy skin and coat. It provides dynamic health support, including relief for allergies and itchy skin, while promoting a healthy immune system and aiding in pain and mobility support. The Norwegian salmon oil is sustainable, traceable, and made without GMOs, antibiotics, preservatives, or other additives.

Best For: Best Overall for Purity & Taste


#2 – Nordic Naturals Omega-3 Cat, Unflavored – 2 oz – 304 mg Omega-3 Per One mL – Fish Oil for Cats with EPA & DHA – Promotes Heart, Skin, Coat, Joint, & Immune Health – Non-GMO

The Nordic Naturals Omega-3 Cat is a pet product made with the same high-quality fish oil as their human products, specifically formulated for cats. Research shows that the omega-3 fish oil in this product helps support heart, skin, coat, immune, and joint health for cats. Nordic Naturals ensures the purity of their fish oil by using fresh, wild-caught, omega-rich fish, and their products are made with non-GMO, gluten-free, and dairy-free ingredients without any artificial additives.

Best For: Promoting heart, skin, coat, joint, & immune health in cats on a budget.


#3 – Salmon Oil for Dogs & Cats – Fish Oil, Omega 3 EPA DHA, Liquid Food Supplement for Pets, All Natural, Supports Healthy Skin & Coat, Joint & Bone Health, Natural Allergy & Inflammation Defense, 8 oz

Salmon Oil for Dogs & Cats is an all-natural liquid food supplement that supports healthy skin and coat, joint and bone health, and natural allergy and inflammation defense in pets. The essential omega 3 fatty acids found in salmon oil help improve the appearance and texture of the animal’s coat, relieve itching and flaking caused by dry skin or allergies, and promote joint health and a strong immune system. The salmon oil is sustainably sourced to ensure the health of the oceans and is produced by a woman-owned small business in the USA.

Best For: Supporting healthy skin and coat, joint health, and natural allergy defense.


#4 – Pet Honesty Omega-3 Fish Oil for Dogs and Cats (32oz) – Skin & Coat Health Supplement – EPA + DHA Fatty Acids, May Reduce Normal Shedding & Sensitive Skin – Supports Immunity, Joint, Brain & Heart

The Pet Honesty Omega-3 Fish Oil for Dogs and Cats is a health supplement made with fish from Iceland. It is high in Omega-3 fatty acids and low in mercury and toxins, making it beneficial for the joint, heart, immune system, skin, coat, and overall health of pets. The fish oil is naturally purified to remove fishy taste and smell and is recommended by veterinarians as a healthy source of omegas for pets.

Best For: Supporting overall health and wellbeing for pets.


#5 – Pure Wild Alaskan Salmon Oil for Dogs & Cats – Supports Joint Function, Immune & Heart Health – Omega 3 Liquid Food Supplement for Pets – All Natural EPA + DHA Fatty Acids for Skin & Coat – 8 FL OZ

Zesty Paws Pure Wild Alaskan Salmon Oil is a liquid food supplement designed to support the overall health of dogs and cats. It is rich in essential fatty acids such as Omega-3 and Omega-6, which can promote a healthy coat and skin, as well as support the holistic health of pets. Manufactured in FDA-registered facilities in the USA, Zesty Paws ensures the quality and trustworthiness of its Salmon Oil supplement.

Best For: Supporting joint function, immune & heart health.


#6 – Grizzly Omega Health for Dogs & Cats, Wild Salmon Oil/Pollock Oil Omega-3 Blend

Grizzly Omega Health for Dogs & Cats is a supplement designed to support the overall health and well-being of pets. Made from a blend of Wild Alaskan Salmon and Pollock oil, it contains high levels of DHA and EPA, which are beneficial for maintaining healthy skin and coat in animals. This product is best for promoting a shiny and healthy coat in pets.

Best For: Best for promoting a shiny and healthy coat.


What Are The Benefits of Omega-3 Fish Oil for Cats?

Omega-3 fatty acids, particularly those found in fish oil, have been recognized as essential dietary components that can significantly improve the health of your cat. They’re not produced by the cat’s body, so they must be acquired through diet or supplements. Here are some of the primary benefits of Omega-3 fish oil for cats:

1. Skin and Coat Health: Omega-3 fatty acids play a vital role in maintaining the health of your cat’s skin and coat. They help reduce inflammation that can lead to skin diseases and allergies, and they promote the health of the skin barrier, which can keep your cat’s coat shiny and healthy.

2. Joint Health: Omega-3 fatty acids, particularly EPA (Eicosapentaenoic acid), are known to reduce inflammation in the joints. This can be particularly beneficial for older cats or those with arthritis, as it can reduce joint pain and improve mobility.

3. Cardiovascular Health: These fatty acids have shown benefits for the cardiovascular system. They can lower triglyceride levels, reduce the risk of heart disease, and improve overall cardiovascular health. Cats with heart issues might benefit from a diet supplemented with fish oil.

4. Cognitive Function: Omega-3 fatty acids, particularly DHA (Docosahexaenoic acid), play a crucial role in brain health and function. Supplementing with fish oil can support brain development in kittens and help maintain cognitive function in older cats.

5. Kidney Health: In cats with kidney disease, Omega-3 fatty acids can reduce protein loss in the urine and slow the progression of the disease, improving the quality of life.

6. Immune System Support: Omega-3s support a healthy immune system by reducing inflammation and oxidative stress, which can help your cat fight off illness and disease more effectively.

7. Eye Development and Health: DHA is an essential component of the retina, and adequate intake can support eye development in kittens and maintain eye health in adult cats.

It’s important to remember that while Omega-3 fish oil supplements can be incredibly beneficial, they should be used as a part of a balanced diet and not as a replacement for other nutrients. Also, it’s always recommended to consult with your vet before starting any new supplement regimen. The vet can provide appropriate dosage based on your cat’s weight, age, and health condition, ensuring that your pet gets all the benefits of Omega-3 fish oil safely.


What Should I Consider When Choosing an Omega-3 Fish Oil for My Cat?

breakaway cat collar

Choosing the right Omega-3 fish oil product for your cat is not as straightforward as picking the first bottle off the shelf. Several factors come into play to ensure the product you select offers the most benefit. Here are key considerations:

1. Source of Omega-3s: The two most beneficial types of Omega-3 fatty acids for cats are EPA and DHA, primarily found in cold-water fish like salmon, sardines, and mackerel. Therefore, it’s advisable to choose fish oil products sourced from these fish.

2. Purity and Quality: The product should be free of contaminants like heavy metals, PCBs, and other toxins that can be found in fish. Look for products that have been molecularly distilled or have a certificate of analysis indicating purity.

3. Formulation: Fish oil supplements for cats come in various forms such as liquids, soft gels, or chewables. Cats can be picky eaters, so choose a format that’s easiest for your cat to consume. Liquids can be mixed with food, while chewables might be treated as treats.

4. Concentration of Omega-3s: Not all fish oil products have the same concentration of Omega-3s. Check the label to see how much EPA and DHA are in each serving. Higher concentrations mean your cat can get the required dosage with less product, which can be especially useful for cats that don’t like the taste of fish oil.

5. Packaging: Fish oil can go rancid if exposed to light, heat, or air. Look for products in dark bottles or opaque packaging and store them as directed to maintain their freshness.

6. Brand Reputation: Go for brands with a good reputation for quality and safety. Brands that specialize in pet supplements or have veterinary endorsements can often be a safer bet.

7. Flavor: While some cats might like the natural fish flavor of these supplements, others might find it off-putting. Some brands offer flavored options, like chicken or beef, which can make administration easier.

8. Price: While price should not be the primary determining factor, it’s important to find a product that fits your budget, especially if your cat will be taking it long term.

Remember to always consult with your vet before starting any new supplement. They can guide you in choosing the right product based on your cat’s specific needs and conditions, and also help determine the right dosage. This way, you can ensure your cat reaps the full benefits of Omega-3 fish oil safely and effectively.

FAQs about Fish Oil for Cats

1. Is fish oil safe for cats? Yes, fish oil is generally safe for cats when given in appropriate amounts. However, it’s essential to consult your vet to determine the correct dosage based on your cat’s size, diet, and overall health.

2. How much fish oil should I give my cat? The dosage varies depending on your cat’s weight and the concentration of Omega-3s in the supplement. Always consult with a vet to determine the most appropriate dosage for your cat.

3. Can I give my cat human fish oil supplements? While the fish oil itself is the same, supplements designed for humans may contain higher concentrations that can be harmful to cats. Always use pet-specific supplements or consult your vet before giving human supplements to your cat.

4. Can fish oil help my cat’s coat look healthier? Absolutely. Omega-3 fatty acids, found in fish oil, contribute to a healthier, shinier coat by nourishing the skin and reducing inflammation that can lead to dryness and itching.

5. How can fish oil benefit a senior cat? Omega-3 fatty acids can help reduce inflammation in joints, potentially alleviating symptoms of arthritis common in older cats. They also support brain function, heart health, and kidney health, all beneficial for aging felines.

6. Can fish oil cause diarrhea in cats? While generally safe, some cats may experience side effects like diarrhea or vomiting from fish oil supplements, especially if introduced too quickly or given in excessive amounts. Always start with small doses and observe your cat’s reaction.

7. Is fish oil beneficial for kittens? Yes, Omega-3 fatty acids like DHA are crucial for kittens’ brain and eye development. However, be sure to consult with a vet to determine an appropriate dosage.

8. Does fish oil have an expiry date? Yes, fish oil can go rancid over time, which can be harmful. Always check the expiry date and follow storage instructions to keep the oil fresh.

9. What’s the difference between fish oil and salmon oil for cats? Both types can provide Omega-3 fatty acids, but they may differ in concentration and purity. Salmon oil comes exclusively from salmon, while fish oil can come from various types of fish.

10. Can fish oil supplements replace a balanced diet for my cat? No, fish oil supplements should be used as an addition to a balanced, complete diet. They’re intended to supplement your cat’s diet, not replace meals. Always consult with a vet before making any significant changes to your cat’s diet.

Conclusion: Best Fish Oil for Cats

Selecting the right fish oil supplement is crucial for your cat’s overall health. From skin and coat enhancement to cardiovascular and joint support, these Omega-3 rich products deliver tangible benefits. In this review, we’ve navigated through the crowded market, providing a comprehensive guide to the top fish oil supplements for cats. While all options listed are beneficial, your final choice should consider your cat’s unique health needs and preferences. Remember, introducing any supplement should always be done gradually and under veterinary guidance. Here’s to a happier, healthier feline companion!

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