10 Best Fish Oils for Dogs in 2022 – Reviews & Top Picks


Much like us humans, our dogs can use a little helping hand every once in a while, when it comes to their diet and health. And, just like people, fish oil offers a host of benefits for your pet, ranging from healthier coats to more moisturized skin to boosted immune systems and more! There are so many fish oil options available for our dogs, though, making it challenging to find the perfect one. Especially if you’re not sure what you should be looking for.

It turns out there are a few qualities that make one fish oil for dogs better than another, and we’ve covered them all below. We also went ahead and reviewed ten of the best fish oils for dogs on the market as a bonus. After this, you’ll have the knowledge you need to make the right choice for your favorite pup!

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A Comparison of Our 2022 Favorites

The 10 Best Fish Oils For Dogs

1. Grizzly Omega Health Omega-3 Dog & Cat Supplement – Best Overall

Grizzly Omega Health Omega-3 Dog & Cat Supplement

Weight: 16 oz, 32 oz, 64 oz
Food form: Supplement, food topping
Product form: Liquid

When you want the best overall fish oil for your pup, Grizzly Omega Health Omega-3 supplement is the way to go. Made with sustainably-sourced wild Alaskan salmon for better quality and loaded with DHA and EPA—omega-3 fatty acids that can actually be absorbed via your pet’s metabolism—this fish oil helps to protect and improve your dog’s health in a myriad of ways. The omega-3 fatty acids within maintain your pet’s immune health, vision, and brain health. Plus, antioxidants and vitamins improve the coat and skin of your pup.

Wild salmon means it has fewer calories, so you won’t be adding on the pounds by using this product. This fish oil also has the seal of the National Animal Supplement Council, so you can be sure it’s safe.

Pros

  • High in omega-3 fatty acids
  • Low in calories
  • Great for all breed sizes

Cons

  • Pump may leak
  • Strong odor 

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

American Journey Wild Alaskan Salmon Oil Formula Liquid Supplement for Cats & Dogs

Weight: 18 oz, 32 oz
Food form: Supplement, food topping
Product form: Liquid

For the best fish oil for the money, we recommend this fish oil by American Journey. This fish oil isn’t purely salmon, but a 51/49% blend of wild-caught Alaskan salmon and pollock. Both types of fish contain EPA and DHA omega-3 fatty acids—both known as long-chain—that support healthy vision and brain function. These omega-3s also support healthy skin and coats by helping to nourish sensitive, dry, itchy skin.

American Journey claims this product is in a flavor that dogs will love. It comes in a squeeze bottle to make adding it to your pet’s meals easier and contains a cap that won’t drip, so there’s no mess.

Pros

  • Nourishes itchy, dry skin
  • Great flavor
  • Squeezable bottle with cap that won’t drip

Cons

  • Strong smell
  • Squeeze bottle is sensitive; if not careful, may get messy

3. Zesty Paws Core Elements Wild Alaskan Salmon Oil Liquid Skin & Coat Supplement for Cats & Dogs – Premium Choice

Zesty Paws Wild Alaskan Salmon Oil Liquid Skin & Coat Supplement for Dogs & Cats

Weight: 8 oz, 16 oz, 32 oz, 2-pk of 32 oz
Food form: Supplement, food topping
Product form: Liquid

If it’s a premium fish oil you’re after, Zesty Paws Core Elements is our choice. This fish oil for healthy skin is made from premium Alaskan salmon caught in the wild and is flavored, so your dog will be sure to approve. Plus, unlike some other fish oils, Zesty Paws is 100% salmon oil instead of salmon and pollock. It offers DHA and EPA omega-3 fatty acids to help make your pup’s coat nice and shiny and improve dry skin. Pet owners noticed increased appetite, fewer allergies and itchiness, and even dandruff going away.

A single teaspoon is all you need to give your pet, and with the easy-to-use pump bottle, adding it to your pet’s meals will be a breeze.

Pros

  • 100% salmon oil
  • Pet owners seem to love
  • Easy to use bottle

Cons

  • Bottle may drip
  • Rare reports of customer receiving leaky bottle

4. Nordic Naturals Omega-3 Pet Liquid Supplement for Dogs

Nordic Naturals Omega-3 Pet Liquid Supplement for Large & Giant Dogs

Weight: 8 oz, 16 oz
Food form: Supplement, food topping
Product form: Liquid

When you want your puppy to have a nice, shiny coat, well-moisturized skin, and a sharp brain, you may want to consider Nordic Naturals. Made not from salmon but from sustainable sardines and anchovies found in the South Pacific, this fish oil for dogs provides your pet with the essential omega-3 fatty acids they need to have those things. Plus, this oil helps keep joints, vision, and the heart healthy, as well.

This product is distilled for purity and tested by a 3rd party to ensure quality. Because it is a pour bottle and not pump, you’ll have to measure out what you need for each meal. It lasts for up to 3 months after opening.

Pros

  • Distilled for purity
  • Tested by a 3rd party for quality
  • Helps your dog’s skin, coat, eyes, brain, heart, and more

Cons

  • Need to actually measure out
  • May make your hands smelly for awhile, even after washing
  • Rare reports of pets getting sick

5. PetHonesty Omega-3 Fish Oil Immune, Joint and Skin & Coat Supplement for Dogs & Cats

PetHonesty Omega-3 Fish Oil Immune, Joint and Skin & Coat Supplement for Dogs & Cats

Weight: 16 oz, 32 oz
Food form: Supplement
Product form: Liquid

This vet-recommended fish oil for dogs is made from a mix of fish—herring, sardines, mackerel, and anchovies—caught off the coasts of Iceland. Free of corn, soy, wheat, and GMOs, PetHonesty’s oil promotes better joint health, along with healthier skin, a shinier coat, and improved immune health. Plus, it contains only low amounts of mercury. And, as a bonus for both your pet and you, this fish oil has been purified to lessen the fishy taste and smell!

PetHonesty’s fish oil is bottled in a facility that is FDA-certified. A portion of all profits goes to no-kill shelters.

Pros

  • Promises less fishy smell & taste
  • Low mercury amounts
  • GMO-free

Cons

  • Reports of some bottles coming with caps rather than pumps
  • Bottle may leak

6. TerraMax Pro Premium Omega-3 Fish Oil Dog Supplement

TerraMax Pro Premium Omega-3 Fish Oil Dog Supplement

Weight: 16 oz, 32 oz
Food form: Supplement, food topping
Product form: Liquid

Vet-recommended TerraMax Pro Premium Omega-3 Fish Oil combines anchovies, mackerel, sardines, and herring caught off the coast of Iceland into a pharmaceutical-grade fish oil that is distilled molecularly to guarantee there are no toxins. The manufacturer claims that each serving will contain at least 525 mg of DHA and 800 mg of EPA designed to ease inflammation, help allergies and itchy skin, and improve the health of your dog’s coat.

TerraMax Pro is 100% free from mercury and contains no detectable amounts of heavy metals, pesticides, dioxin, or PCBs. They use sustainable and safe fishing practices to avoid harming protected species such as dolphins.

Pros

  • 100% mercury free
  • Pharmaceutical grade
  • High amounts of omega-3 fatty acids

Cons

  • Pump is leaky
  • Rare complaints that liquid seemed overly thin/too liquidy
  • Occasional reports of people receiving product with broken pump

7. Nutramax Welactin Omega-3 Softgels Skin & Coat Supplement for Dogs

Nutramax Welactin Omega-3 Softgels Skin & Coat Supplement for Dogs

Weight: 120 count, 240 count, 360 count
Food form: Supplement
Product form: Softgel

Derived from wild-caught sardines and anchovies from Peru, Nutramax delivers at least 155 mg of EPA and 100 mg of DHA omega-3 fatty acids in each serving. That’s enough to provide your pup with a boost of health for their kidneys, brain, and eyes, plus support for a healthy, shiny coat and less dry skin. This fish oil also supports  joint and immune function, the nervous system, and a regular heart rhythm.

The softgels have a nice minty flavor (peppermint has analgesic and anti-inflammatory properties and is fine in moderation for dogs). And—so you don’t have to worry about anything harming your pet—all sardines and anchovies in this product are tested for any contaminants before use.

Pros

  • Minty flavor
  • Tested for contaminants

Cons

  • More difficult to give to your pet than a liquid
  • Complaints of “softgels” being super hard

8. Nutri-Vet Fish Oil Softgels Skin & Coat Supplement for Dogs

Nutri-Vet Fish Oil Softgels Skin & Coat Supplement for Dogs

Weight: 100 count
Food form: Supplement
Product form: Softgel

These fish oil softgels were formulated by vets to provide not only a boost of health but a yummy treat for your pup. Derived from a mix of fish—sprat, salmon, sardines, anchovies, mackerel, and herring—they not only contain omega-3 fatty acids needed to keep your dog’s coat shiny and promote healthy joint and immune system function, but they also contain Vitamins A, D, and E. Plus, they won’t make your pet’s breath all stinky!

Each softgel has 120 mg of DHA and 180 mg of EPA and can be given to your pet easily and without mess.

Pros

  • Contains added vitamins
  • Supposedly odor free

Cons

  • Pills are very large; may be difficult for smaller dogs
  • Some pet owners saw better results with other brands
  • Rare complaint of dogs becoming gassy after taking

9. EicosaDerm Omega 3 Liquid Dog & Cat Nutritional Supplement

EicosaDerm Omega 3 Liquid Dog & Cat Nutritional Supplement

Weight: 8 oz, 32 oz
Food form: Supplement, food topping
Product form: Liquid

Made in the United States from small, cold-water fish, EicosaDerma Omega 3 Liquid helps reduce inflammation and boost immune health in your dog. The EPA and DHA omega-3 fatty acids, with added Vitamin E, will also help your pet’s coat stay glossy and improve dry, itchy skin. Plus, every milliliter only contains approximately 17 calories, making it a perfect addition for those pups who are watching their weight.

All product is tested to ensure that it is free from pesticides. Each pump from this bottle equals about 2ml; the fish oil contains a handy dosing chart according to weight, so you’ll be sure you are giving your pet the correct amount.

Pros

  • Low calorie
  • Added Vitamin E

Cons

  • Bottle pump is leaky
  • Super smelly

10. Alaska Naturals Wild Alaskan Salmon Oil Formula Dog Supplement

Alaska Naturals Wild Alaskan Salmon Oil Formula Dog Supplement

Weight: 8 oz, 15.5 oz, 32 oz, 64 oz, 120 oz
Food form: Supplement, food topping
Product form: Liquid

Alaska Naturals is made from premium Alaskan salmon caught in the wild and contains a balance of omega-3 fatty acids that is great for your pet. Since it isn’t distilled in high heat and is processed the least amount possible, more of the good for your dog elements are retained. Plus, at only 40 calories per teaspoon, it won’t add an overabundance of calories to your pup’s overall diet!

Every batch of Alaska Naturals Wild Alaskan Salmon Oil Formula Dog Supplement is tested by a 3rd party for quality.

Pros

  • Minimally processed
  • 3rd party testing
  • Improves coat and skin health

Cons

  • Some people had trouble with pump on bottle
  • Also contains pollock oil
  • Can be smelly

Buyer’s Guide

What Are Omega-3 Fatty Acids?

Omega-3 fatty acids may sound like a bad thing (fat isn’t good, right?), but they’re actually a good thing! You’ll find omega fatty acids in polyunsaturated fats (one of the good kinds of fats). These fatty acids are important because they make hormones that help to regulate both inflammation and blood flow. You’d think we’d all have these hanging around in our bodies, but they aren’t found naturally. That’s why it’s crucial for us (and our pets) to consume things that contain them, such as flaxseed and fish oil.

That isn’t all that omega-3 fatty acids are good for, though! They’re also good to have in our bodies to help balance out omega-6 fatty acids found mostly in grains and processed foods. A lot of dog foods have way too many of the omega-6 fatty acids in them, which means so does your dog (and they do need some omega-6, just not an overabundance).

Why Is Giving Your Dog Fish Oil A Good Idea?

Giving your dog fish oil can offer them a host of health benefits!

Benefits

  • Healthy Coat & Skin: Omega-3 fatty acids are abundant in fish oil, which is great because they can help make your dog’s coat super shiny, as well as improve the state of itchiness caused by dry skin. Bonus side effect of improving the condition of your pup’s skin? It may reduce shedding!
  • Immune System: Our pups can sometimes get into some pretty gross stuff (like the garbage).. That means they’re exposed to bacteria all the time. Thankfully, omega-3 fatty acids offer a boost of health to your pet’s immune system, so they should have an easier time fighting off any illnesses that come their way. And, if the fish oil you’re giving your dog has salmon in it, even better! Salmon has an antioxidant called astaxanthin that has some pretty sweet benefits for your dog’s immune system (and could even help prevent cancer!).
  • Healthy Heart: Much like adding fish oil supplements to a human’s diet can have heart-healthy benefits, the same can be said for adding them to your dog’s diet. Omega-3s offer several benefits, including reducing the chances of arrhythmia and improving the muscle of the heart!
  • Improved Joint Function: Because fish oil contains omega-3 fatty acids that can help reduce inflammation, they make a fabulous addition to the diet of any dog suffering from joint issues. When it comes to arthritis, not only can this reduction in inflammation help lessen pain and improve mobility, but studies found that dogs taking fish oil were able to take less of their arthritis medication.
  • Fish oil can also help with elbow and hip dysplasia. Dysplasia happens when your pet’s joints don’t develop the way they should. The result is a breakdown of cartilage in the joints that causes inflammation, pain, and limping. While fish oil isn’t a cure, it can help reduce the inflammation that causes symptoms.
  • Healthy Brain: Omega-3 fatty acids are often given to pregnant dogs because they are an essential component of proper brain development in puppies. It isn’t just puppies who can benefit, though! Senior dogs affected by cognitive dysfunction syndrome usually have lower amounts of DHA in their systems. But, studies found that when given fish oil containing DHA, symptoms of cognitive dysfunction syndrome could be reduced!

Potential Side Effects

Fish oil, like all supplements, may have a few side effects. These won’t necessarily occur in all dogs, but you should keep an eye out for them.

  • Upset Stomach: Stomach issues can occur any time your pet is given something new to try, especially if they have a sensitive stomach. Plus, super fatty foods (and fish oil is primarily fat) can cause mild and quickly resolved diarrhea in dogs. If diarrhea doesn’t stop soon or isn’t a mild case, quit giving your pet fish oil immediately and talk to your vet about dosage amounts.
  • Food Allergy: It’s rare, but some dogs may be allergic to specific fish species, making them allergic to fish oil derived from those fish. If this is the case, your pet’s coat could start looking unhealthy, or they could develop itchy skin.
  • Blood Thinner: Fish oil may cause your pet’s blood to become thinner due to the fact that omega-3s can prevent blood from clotting. Usually, this isn’t an issue (and may even improve heart health). However, if your dog gets injured somehow and is bleeding, it could become a problem. Also, definitely do not give fish oil to pups who are already on blood-thinning medication!
  • Contraindication: Fish oil for dogs works the same as with humans. Thus, there may be occasions where a medication your dog is already taking won’t mix well with the fatty acids in fish oil (especially anti-inflammatory drugs). Always check with your vet before starting your pet on any supplements.

How Do I Store Fish Oil?

Storing fish oil is a simple affair. You’ll need to protect it from extreme heat, light, and air as it can become rancid if exposed to oxidation. To accomplish this, you’ll need to store fish oil in the refrigerator.

fish oil
Image Credit: Monfocus, Pixabay

What To Look At In A Fish Oil For Dogs

You want to be sure you’re getting your dog the best, particularly when it comes to something they’ll be ingesting. That’s why you should look at the following when buying fish oil for your dog.

Ingredients

You’ll find that different fish oils for dogs are made from different ingredients. Some will be 100% salmon, while others may be salmon and pollock, and still, others will have a wide mix of fish from which the oil is derived. While fish oil from any fish should be fine (unless your dog has an allergy), you’ll find that the ones that are 100% salmon will typically contain higher levels of omega-3 fatty acids and astaxanthin.

You’ll also find that some fish oils contain added vitamins (especially Vitamin E) and antioxidants to add more benefit. Occasionally, fish oil may even have flavoring added to make it more appealing to your pet.

You’ll need to decide how pure a product you want for your dog and whether added vitamins or antioxidants are required. Knowing ingredients is also important to understand how a fish oil may interact with your pet’s medications.

Omega-3 Fatty Acid Levels

Like we said above, not all fish oils are created equal. Some will have extremely high levels of EPA and DHA, while others will have much lower amounts. The more bang you’re getting for your buck, the better.

Form

Fish oil for dogs can come in different forms, mainly as a liquid or as a softgel (but occasionally as a chew). You know your pet, so you’ll know which form will be simplest to get them to consume. Pills are usually less smelly, but some dogs won’t take pills (no matter how much peanut butter or other deliciousness you put on them).

fish oil pill
Image Credit: PublicDomainPictures, Pixabay

Testing

The FDA regulates food and supplements for pets much less than it does for people. That’s why choosing a product that has been 3rd party tested to ensure quality and purity is important. Likewise, you can check and see if the fish oil you’re considering has The NASC Quality Seal, as any brand carrying it will have had to meet very stringent standards.

Price

Supplements can be pricey, whether they’re for dogs or people! Check prices along with ingredients and quality closely—you may find more than one product that contains the same ingredients, etc., for wildly different prices.

Reviews

Reviews from other pet owners who have used a product before are a fabulous place to get the honest truth about quality and benefits. Just keep in mind that all dogs react to foods and supplements differently, so even a product with the best reviews may not work out for your pet.

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Conclusion

When you want the best overall fish oil for your dog, our pick is Grizzly Omega Health Omega-3 because of its seal from the National Animal Supplement Council and added vitamins and antioxidants. For the best fish oil for the money, we recommend American Journey Wild Alaskan Salmon Oil Formula since it has a low price point but still contains 51% salmon oil. Finally, if you’re looking for a premium choice, our pick is Zesty Paws, as it is 100% salmon oil and flavored, so your dog will love it!


Featured Image Credit: metodej, Shutterstock

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