The Best Fish Oil for Dogs: Reviewed and Ranked for 2022

Written by Kirstin Opal
Updated: July 22, 2022

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Just like humans, canines need several things as part of their diet to remain healthy. While most dog foods contain vitamins and minerals, there are a number of other things you may want to add to your dog’s diet. 

There are a variety of supplements on the market, but how do you know which one your dog actually needs? If your pooch has itchy skin, a dull coat, joint issues, gastrointestinal problems, or other health concerns, ask your vet about giving your dog fish oil. 

This in-depth guide will teach you everything you need to know about the benefits, side effects, and types of fish oil for dogs. Below you’ll find honest reviews and the pros and cons of each product. 

  1. Grizzly Omega Health for Dogs & Cats
  2. Grizzly Omega Health for Dogs & Cats
    • Made with sustainably sourced wild Alaskan salmon
    • High in DHA and EPA omega-3 fatty acids
    • The convenient pump makes adding oil to kibble easy
    • Dogs love the taste!
    • Wild salmon contains fewer calories than farmed salmon, so your pup won't gain weight from this oil
    Check Amazon
  3. Nordic Naturals Omega-3 for Large & Giant Dogs
  4. Nordic Naturals Omega-3 for Large & Giant Dogs
    • Made from ethically sourced sardines and anchovies instead of salmon
    • Contains the omega-3 fatty acids your dog needs
    • Promotes a healthy, shiny coat, hydrated skin, and brain health
    • Distilled for safety and tested by a third party for quality
    • Manufactured in a zero-waste, biofuel-powered factory and certified by Friend of the Sea
    Check Chewy Check Amazon
  5. Nutramax Welactin Omega-3 Softgels
  6. Nutramax Welactin Omega-3 Softgels
    • Made from wild-caught sardines and anchovies
    • Contains 155 mg of EPA and 100 mg of DHA omega-3 fatty acids per serving
    • Supports kidney, brain, eye, coat, and skin health
    • Maintains immune and joint function and promotes a healthy neurological system and heart rhythm
    • Contains peppermint, which is analgesic and anti-inflammatory -- and dogs love the taste!


    Check Chewy Check Amazon
  7. American Journey Wild Alaskan Salmon Oil
  8. American Journey Wild Alaskan Salmon Oil
    • Available in two convenient sizes: 18 and 32-oz bottles
    • Combination of two fish -- Alaskan salmon and pollock -- rich in omega-3 fatty acids, EPA and DHA
    • These nutrients benefit eye, cognitive, skin, and coat health
    • Dogs love the taste!
    • The squeeze-bottle design and drip-free top make adding this supplement to your dog's food easy and mess-free
    Check Chewy

Why Should I Give My Dog Fish Oil?

Omega fatty acids are required for dogs to mature properly and maintain excellent health. Some of these acids may be produced by dogs, while others, known as essential fatty acids, have to be absorbed from their food. 

Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are two of the key fatty acids. They have quite a distinct function in your dog’s biology and they are both omega-3 fatty acids. These crucial molecules are difficult to come by, as they are only present in a small number of dog foods.

Chia seeds and flaxseed are two examples of this. However, the ocean provides some of the richest supplies of omega-3 fatty acids, notably fatty seafood such as salmon, herring, and anchovies.

Benefits of Fish Oil

Some of fish oils’ health advantages are tiny, while others can effectively enhance your pet’s quality of life. Fish oils include omega-3 fatty acids, which aid in the following:

  • Better Coat: After giving their dog fish oil supplements for a few months, many owners are surprised at how smooth and lustrous their dog’s fur becomes.
  • Helps Dry Skin: Omega-3s frequently enhance your dog’s overall skin health in addition to improving his hair. These advantages are more noticeable in dogs with skin conditions.
  • Development in Puppies: The continuous growth of your dog’s brain and eyes is critical for his long-term health, and fish oils can help guarantee that your new puppy receives all he requires. 
  • Reduce inflammation: Omega-3 fatty acids can benefit in a variety of ways due to their anti-inflammatory properties that function throughout your dog’s body. This implies that fish oil supplements may aid your dog with inflammation in any part of his body, including his heart, kidneys, joints, and a variety of other areas.

#1 Overall Best: Grizzly Omega Health Omega-3 Dog & Cat Supplement

Grizzly Omega Health Omega-3 supplement is our top choice after researching a plethora of options. For higher quality, it’s made with sustainably sourced wild Alaskan salmon, which is high in DHA and EPA, omega-3 fatty acids that can be processed by your pet’s metabolism.

In a variety of ways, fish oil benefits and protects your dog’s health. The omega-3 fatty acids in this product help to keep your pet’s immune system, eyesight, and brain in good shape. In addition, antioxidants and vitamins help your dog’s hair and skin. 

It’s available in three different sizes and can be given to dogs of all breeds, ages, and sizes. The pump handle makes it easy to add the oil to their daily kibble. Dogs love the rich taste and won’t think twice about scarfing down their food with the fish oil added on top! 

Because wild salmon contains fewer calories than farmed salmon, Fido won’t gain weight by eating it. You can be confident that this fish oil is safe because it bears the seal of the National Animal Supplement Council.

#1 Overall Best
Grizzly Omega Health for Dogs & Cats
  • Made with sustainably sourced wild Alaskan salmon
  • High in DHA and EPA omega-3 fatty acids
  • The convenient pump makes adding oil to kibble easy
  • Dogs love the taste!
  • Wild salmon contains fewer calories than farmed salmon, so your pup won't gain weight from this oil
Check Amazon

2. Best Budget: American Journey Wild Alaskan Salmon Oil Formula Liquid Supplement for Cats & Dogs

Available in 18 and 32-ounce bottles, the American Journey Wild Alaskan Salmon Oil Formula Liquid Supplement for Cats & Dogs is a great option for those looking to save money. This fish oil is a 51/49 percent combination of wild-caught Alaskan salmon and pollock, not just salmon. 

Both forms of fish include long-chain omega-3 fatty acids, EPA and DHA, which are beneficial to eyesight and cognitive function. These omega-3 fatty acids also aid in the maintenance of healthy skin and coats by nourishing sensitive, flaky, itchy skin.

This product, according to American Journey, has a flavor that dogs will enjoy. It has a drip-free top and a squeeze bottle design that allows you to simply provide a nutritional boost to their meals without worrying about making a mess. 

Best Budget
American Journey Wild Alaskan Salmon Oil
  • Available in two convenient sizes: 18 and 32-oz bottles
  • Combination of two fish -- Alaskan salmon and pollock -- rich in omega-3 fatty acids, EPA and DHA
  • These nutrients benefit eye, cognitive, skin, and coat health
  • Dogs love the taste!
  • The squeeze-bottle design and drip-free top make adding this supplement to your dog's food easy and mess-free
Check Chewy

3. Best for Large Dogs: Nordic Naturals Omega-3 Pet Liquid Supplement for Dogs

Nordic Naturals is a good choice if you want your pup to have a healthy, lustrous coat, hydrated skin, and a bright mind. This fish oil for dogs is made from ethical sardines and anchovies located in the South Pacific, rather than salmon. 

It supplies your dog with the critical omega-3 fatty acids they require. Furthermore, this oil is beneficial to the health of the joints, eyes, and heart. Nordic Naturals is distilled for safety and quality-tested by a third party. 

You’ll have to measure out a serving for your dog for each meal because it’s a pour bottle rather than a pump. It can last for up to three months after being opened. These fish oils are Friend of the Sea certified and produced in a zero-waste, biofuel-powered plant.

Best for Large Dogs
Nordic Naturals Omega-3 for Large & Giant Dogs
  • Made from ethically sourced sardines and anchovies instead of salmon
  • Contains the omega-3 fatty acids your dog needs
  • Promotes a healthy, shiny coat, hydrated skin, and brain health
  • Distilled for safety and tested by a third party for quality
  • Manufactured in a zero-waste, biofuel-powered factory and certified by Friend of the Sea
Check Chewy Check Amazon

4. Best Softgel: Nutramax Welactin Omega-3 Softgels Skin & Coat Supplement for Dogs

Nutramax is made from wild-caught sardines and anchovies from Peru, and each serving contains at least 155 mg of EPA and 100 mg of DHA omega-3 fatty acids. That’ll provide your dog a health boost for their kidneys, brain, and eyes, as well as support for a healthy, lustrous coat and less dry skin. 

Nutramax fish oil also helps to maintain joint and immunological function, as well as the neurological system and a healthy heart rhythm. The soft gels have a pleasant minty taste. Peppermint is analgesic and anti-inflammatory, and it is safe for dogs in moderation. 

Sardines and anchovies in this product are screened for pollutants before usage, you don’t have to worry about anything hurting your pet. Welactin’s fish oil is obtained from smaller cold-water fish, which tend to accumulate fewer toxins than bigger cold-water fish. A single soft gel capsule per 20 pounds of your dog’s body weight should be given once a day, or as advised by your veterinarian.

Best Softgel
Nutramax Welactin Omega-3 Softgels
  • Made from wild-caught sardines and anchovies
  • Contains 155 mg of EPA and 100 mg of DHA omega-3 fatty acids per serving
  • Supports kidney, brain, eye, coat, and skin health
  • Maintains immune and joint function and promotes a healthy neurological system and heart rhythm
  • Contains peppermint, which is analgesic and anti-inflammatory -- and dogs love the taste!


Check Chewy Check Amazon

Choosing the Best: What to Look for

How do you know if one product is worth your money and if one is just a hoax? In order for you to pick a high-quality fish oil that will provide your pup with better health, look for the following factors. 

Ingredients 

A fish oil supplement, like any other pet food, should be checked for ingredients. You’ll want to check for omega-3 fatty acids in particular. There are several decent products on the market, but you should look for one that has EPA and DHA, which are two of the most essential forms of omega-3 fatty acids. 

Testing 

Because the FDA does not monitor pet foods as strictly as it regulates human meals, choosing a product that has been privately tested for purity is advantageous. Look for a money-back guarantee and make sure the product has been third-party evaluated by an independent testing agency. Another item to check for is the NASC Quality Seal, which is only given to brands that fulfill stringent quality standards.

Form

Fish oil for dogs is available in a variety of formats, mostly as a liquid or a soft gel, but also as a chew or tablet. You already know your pet, so you’ll be able to tell which kind will be the easiest for them to ingest. Although tablets are normally less smelly, some dogs refuse to take them.

Price

Supplements, whether for pets or humans, may be costly! Check costs, ingredients, and quality carefully—you can discover many products with the same components, etc., but at dramatically different rates.

Reviews

Testimonials from other dog lovers who use a product that you’re considering are an excellent source of information about its performance and advantages. Just bear in mind that every dog reacts to diets and supplements individually, so even the best-rated product might not be right for your pup. 

What Dosage Should I Give My Dog? 

The majority of pet owners want to know how much fish oil is beneficial for dogs. Your dog’s fish oil therapy will be as individual as his dosage. Before adding fish oil to your dog’s food, consult with your veterinarian to confirm that your dog is getting the right quantity. 

A dog’s gastrointestinal tract can be harmed by too much fish oil, resulting in diarrhea. It will be ineffective if there isn’t enough fish oil. A veterinarian can recommend a starting dose based on the problem being managed, your dog’s weight, breed, size, and other relevant factors.

The Different Types of Fish Oil for Dogs: Pros and Cons Compared

Fish oil for dogs is available in a few different styles. There’s no denying that not all dogs will take capsules or chews. It’s important to find a form that your pup will enjoy. Let’s take a look at the benefits and advantages of each type. 

Capsule and Tablets

ProsCons 
More affordableNot all dogs like taking them
Widely available
Can be hidden in a treat

Liquid

ProsCons 
Most come in a pump or squirt bottlesMore expensive
Dogs love the tasteBulky packaging
You’re in control of the dose

Chews

ProsCons 
Simple for dogs to eatHarder to find 
Available in tasty flavors 
Easy on dogs digestive system

Verified Review: User Experience

By now, you’re practically an expert on all things fish oil for dogs. Before adding anything to your cart, consider taking a look at what pet owners have to say who’ve already purchased these products. 

​​One Amazon user has this to say about our top choice: Grizzly Omega Health for Dogs & Cats. 

“Our boy had been suffering from skin issues for a while, we thought he was just having an allergic reaction to the grass. We had tried everything, antibiotics, cream, ointment, Benadryl… It helped some but it never went away completely and always came back when we stopped treatment. We started giving him this oil in his food, and no other treatment, and he’s already improved so much more than before and I can tell he’s feeling better. He’s playing and jumping around more. I’m so glad I found this stuff!”

Fish oil can be beneficial for senior dogs as well. Just like humans, as animals age, their joints don’t work quite as well. A pet parent on Chewy has this to say about the Nordic Naturals fish oil for dogs:

“I have two aging huskies, one of which has arthritis in her hips and lower back. This omega 3 oil was recommended by my vet, and both dogs love it! I’m seeing easier movement in my arthritic girl and she seems happier as well. I love that it is sustainably sourced. I highly recommend this product!”

Always remember to read reviews to get a better idea of what people who are using the product are experiencing. 

Products For This Review

About the Author

When she's not busy playing with her several guinea pigs, her 14-year-old dog, or her cat Finlay Kirstin is writing articles to help other pet owners. She's also a REALTOR® in the Twin Cities and is passionate about social justice. There's nothing that beats a rainy day with a warm cup of tea and Frank Sinatra on vinyl for this millennial.

The Best Fish Oil for Dogs: Reviewed and Ranked for 2022 FAQs (Frequently Asked Questions) 

Does fish oil help dogs with itchy skin?

One of the healthiest products to add to your dog’s diet is fish oil. Fish oil enhances a lustrous coat, decreases itchy and flaking skin, and can help alleviate allergens and joint discomfort in your canine friend. It may even aid in the strengthening of their immune systems and the battle against cancer.

What are the side effects of fish oil for dogs?

Diarrhea, vomiting, delayed wound healing, lethargy, a fishy odor to the breath or skin, increased itching, or an oily coat and skin flakes are all possible side effects, especially at high doses. These negative effects should go away if you stop using the pill.

Can you give a dog fish oil for humans?

Some types of fish oil are more condensed than others, limiting the amount of oil consumed while maintaining adequate quantities of omega-3 fatty acids. At approved dosage levels, all three types of fish oil are generally regarded as safe for both dogs and people.