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12 Best Fish Oil Supplements for Dogs 2024

Written by: Stephanie Maguire
Stephanie Maguire is a writer for She loves animals so much that she started her own pet-sitting business in 2017, and goes out of her way to point-out and pet every single dog she sees.Read more
| Published on May 15, 2024

Reviewed by: Dr. Theresa Fossum

Reviewed by:

Dr. Theresa Fossum

Meet Dr. Theresa (Terry) W. Fossum, DVM, MS. Ph.D., Diplomate ACVS – a remarkable animal lover whose passion for animal care and innovative solutions has left an indelible mark on the veterinary world. As the CEO of both Phoenix Animal Wellness and Epic Veterinary Specialists, she's ensuring dogs and cats receive the highest level of care and compassion.Read more
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If you’re looking for the best fish oil supplement for dogs, choosing a high-quality product is important to ensure your dog gets the best possible benefits. Fish oil supplements are a good source of Omega-3 fatty acids, and many brands include additional ingredients such as vitamins and minerals to support overall health. But you’ll find an ocean of options on the market, so to help you find your pup’s favorite choice, we’ve got a list of our favorite fish oil chews and liquids.

Before you check out the competitors, though, let’s answer your fish oil questions and talk about what factors to consider while searching for the best fish oils for dogs. And remember—it’s always a good idea to consult your veterinarian before starting your dog on any new supplement. They can recommend the best product for your dog’s specific needs and help you determine the appropriate dosage.

Best Fish Oil Supplements for Dogs
Benefits of Fish Oil Supplements for Dogs

Fish oil supplements for dogs are a source of Omega-3 fatty acids, which have several potential health benefits, including:

  1. Improved skin and coat condition: Omega-3s can help to nourish the skin and improve the appearance of the coat.
  2. Joint health: Omega-3s may help to reduce inflammation and support joint health in dogs.
  3. Heart health: Omega-3s may help to support cardiovascular health in dogs.
  4. Cognitive function: Some research suggests that Omega-3s may help to support healthy brain function in dogs.

It’s important to note that these potential benefits have not been proven conclusively, and more research is needed to fully understand the effects of Omega-3s in dogs.

Best Fish Oil Supplements for Dogs

Sourced directly from the pristine waters of Alaska, Boat to Bowl’s Wild Alaskan Omega Fish Oil for dogs and cats offers a pure, potent supplement for your canine companion. It’s veterinarian-recommended and crafted from responsibly wild-caught Pollock, ensuring a high-quality, sustainable option for pet parents.

Supporting healthy skin and shiny coats, joints, and overall health is incredibly easy with the convenient flip-top bottle – a couple quick squeezes of “Vitamin Sea” is all you need!

Delivery method: Flip Top Bottle

Total Omega-3s: 778 mg

Total Omega-6s: 86 mg

Total Omega-9s: 546 mg

Ingredients: Wild Pollock oil, mixed tocopherols (natural vitamin E)


  • Sourced from 100% wild USA-caught Alaskan fish
  • High in Omega-3, 6, and 9 for optimal health benefits
  • Supports skin, coat, and joint health
  • Suitable for both dogs and cats
  • Vet-recommended and easy to incorporate into meals


  • The natural fish scent might be strong for some pet owners

      2. WagWell Ahiflower Omega Oil

      WagWell Omega Oil

      The WagWell Ahiflower Omega Oil is a unique alternative to fish oil that many dog parents love. It’s made of Ahiflower, a 100% plant-based omega, which is paired with DHA and microalgal oils. It provides the same benefits as traditional fish oil by promoting healthy skin, coat, and joints. This vet-formulated supplement is sustainable and easy to serve by simply pumping some of the liquid over your furry friend’s meals. 

      Delivery method: Liquid pump

      Total Omega-3s: 585 mg

      Total Omega-6s: 123 mg

      Total Omega-9s: 48 mg

      Ingredients: Ahiflower® (Buglossoides arvensis) oil, Algal DHA (Schizochytrium spp) oil, biotin, sunflower oil, rosemary extract, mixed tocopherols, sunflower lecithin, ascorbyl palmitate

      • Made with 100% plant-based omegas
      • Promotes healthy skin, coat, and joints
      • Vet-formulated
      • Easy to serve by pouring over your dog’s meals


      • Picky eaters might not like it

      3. iHeart Dogs Omega 3-6-9 Select Grain Free Skin & Coat Chews With Pure Antarctic Krill Oil

      best fish oil supplements for dogs

      With iHeart Dogs Omega 3-6-9 Select Grain Free Skin & Coat Chews, you can give your dog the benefits of fish oil by handing them a tasty treat. Each yummy chew contains essential omega-3, omega-6, and omega-9 fatty acids, including EPA and DHA. Plus, this is one of the only fish oil supplements that offer GLA in their healthy blend. And iHeartDogs’ cold press extrusion process doesn’t use heat, steam, water, or high-pressure manufacturing to lock in as much nutrition as possible. Help your pup feel good with these best fish oil chews for dogs because they’re vet formulated and made in the USA. Buying from iHeartDogs also means donating to shelter dogs.

      Delivery method: Chews

      Serving Size: 1 chew daily per 15-30 lbs.

      Krill meal content per serving: 1,100 mg

      Total Omega-3: 440 mg per chew

      DHA per serving: 100 mg per chew

      EPA per serving: 155 mg per chew

      Ingredients: Krill meal, astaxanthin, DHAgold™️, anchovy fish oil, flaxseed meal, safflower oil, borage oil, evening primrose oil, glycerin, lactic acid, mixed tocopherol, potato flour, potato starch, sorbic acid, sunflower lecithin, xanthan gum

      • Customers report less itching in their dogs
      • 120 count package
      • Ideal for dogs with food sensitivities
      • Made in the USA
      • Every purchase feeds 14 hungry shelter dogs
      • 100% money-back guarantee
      • Your dog will beg for them like they’re treats

      Related: 10 Best Krill Oil Supplements For Dogs

      4. iHeartDogs Salmon Oil for Dogs and Cats – Nourishing Skin & Coat Omega 3 Fish Oil for Dogs Supports Allergy & Itch Relief

      What we love about this fish oil is the look and smell. Compared to most fish oils, which have a yellowish tone, this bright pinkish-orange salmon oil is sourced from Norwegian salmon. It’s so fresh that it has no fishy smell at all!

      If your pup suffers from dry, itchy fur or low energy, this premium fish oil is all-natural and supports skin, coat, hips and joints, heart, and immunity. Salmon oil can give your dog the energy he or she needs for a happy, healthy life.

      Delivery method: Liquid pump

      Omega-3 content per serving: 217 mg

      DHA per serving: 46 mg

      EPA per serving: 31 mg

      DPA per serving: 15mg

      • No fishy smell
      • Fresh taste that dogs love
      • Contains not just DHA and EPA, but also DPA
      • Not the cheapest option
      • Should be stored in cooler, dark environment


      5. Zesty Paws Omega Bites

      Each Zesty Paws Omega Bites chew features AlaskOmega, a premium fish oil with Omega 3 fatty acids (EPA and DHA), along with vitamin C, vitamin E, and biotin (or Vitamin B7). These soft chews also contain antioxidants, providing additional free radical support for dogs. And they’re made in the USA with sustainably sourced fish oil and never any artificial preservatives, flavors, or synthetic colors.

      Delivery method: Soft chew

      Serving Size: 1 chew daily for up to 25 lbs.

      Calories: 18 ME kcal per 4-gram chew

      Omega-3 content per serving: 143 mg

      DHA per serving: 25 mg

      EPA per serving: 80 mg

      Ingredients: Pollock Oil (AlaskOmega), Vitamin C (Ascorbic Acid), Vitamin E (d-alpha tocopherol), Zinc, Biotin, Pea Flour, Palm Fruit Oil, Garbanzo Flour, Tapioca Flour, Flaxseed Meal, Algae, Natural Chicken Flavoring, Sunflower Lecithin, Cod Liver Oil, Coconut Glycerin, Sorbic Acid (Natural Preservative), Powdered Cellulose (Coating Only)

      • Made with AlaskOmega, a premium Omega-3 fatty acids blend
      • Sustainably sourced
      • Contains vitamin C, vitamin E, & biotin
      • Reviewers report improvements in dandruff and shedding
      • For dogs of all ages
      • Not for picky eaters
      • Dries out quickly


      6. PetHonesty Wild Alaskan Salmon Oil for Dogs

      PetHonesty Wild Alaskan Salmon Oil for Dogs is made from 100% natural salmon wild-caught off the coast of Alaska. And you can bet on its purity because this best fish oil supplement for dogs is made from just three ingredients and never diluted with other oils. Plus, it’s free from artificial ingredients and preservatives. Thanks to the included pump top, you can simply pump the oil over your pup’s food to give them all the benefits of fish oil.

      Delivery method: Liquid

      Serving Size: 1 pump (2ml) of oil per 15-25 lbs. of body weight

      Calories: 41.4kcal/teaspoon

      Omega-3 content per 2 pumps: 1227 mg

      DHA per serving: 465 mg

      EPA per serving: 423 mg

      Ingredients: Alaskan Salmon Oil, EPA Omega-3, DHA Omega-3

      • All natural ingredients and no preservatives
      • No added wheat, corn, or sugar
      • Many reviews mention improved coat conditions
      • Made for all ages and sizes
      • Dongs enjoy the taste
      • For cats and dogs
      • Made in the USA with Alaskan-caught salmon
      • Veteran-owned and donates to no-kill shelters
      • Reviewing parents mention fishy smell on pet’s breath

      7. VetriScience Omega 3, 6, 9 Fish Oil for Dogs and Cats

      best fish oil supplements for dogs

      VetriScience Laboratories’ Omega 3, 6, 9 gel capsules contain a blend of non-GMO oils from borage seed, flaxseed, and fish that combines the health benefits of Omega 3, 6, and 9 fatty acids. Sold in a 90-capsule quantity for an affordable price, these fish oil capsules will make your life easy when it comes to giving your dog Omega fatty acid benefits. Just wrap it in something yummy, then toss it to your pup. And if your dog has trouble swallowing large capsules, VetriScience recommends opening the gel capsule and adding the oil to your dog’s bowl at mealtime.

      Delivery method: Gel capsule

      Serving Size: 1 gel cap daily per 15 – 30 lbs. of body weight

      DHA per capsule: 80 mg

      EPA per capsule: 120 mg

      Ingredients: Borage seed oil, fish oil, flaxseed oil, gelatin, glycerin, purified water

      • Gluten-free
      • Reviewers report less itching in dogs
      • Formulated with input from veterinarians and trainers
      • Affordably priced
      • 100% satisfaction guarantee
      • Manufactured in the USA
      • Large capsules may be hard for small dogs to swallow
      • Some reviewers report capsule cover feels like hard plastic


      8. Pet Naturals Skin and Coat for Dogs

      Avoid sticky and stinky liquids with Pet Naturals Skin and Coat Chews for Dogs while still treating your dog to the benefits of fish oil. Made from a blend of salmon oil, vitamin E, and flax oil, these chews are designed to calm irritated skin and reduce scratching. They’re formulated by a veterinarian and never contain any corn, wheat, or artificial color. And at such a low price, Pet Naturals fits any budget.

      Delivery method: Soft chew

      Serving Size: 1 chew per 25 lbs. of body weight daily

      Calories: 8 kcal per chew

      Omega-3 content per chew: 20 mg

      Ingredients: oat flour, rye flour, brewers yeast, glycerin, flaxseed meal, vegetable flavor, Arabic gum, soy lecithin, safflower oil, vitamin E supplement, maltodextrin, sodium alginate, calcium sulfate, water, canola oil, dried citrus pulp, salmon oil, sorbic acid (a preservative), propionic acid (a preservative), mixed tocopherols (a preservative), citric acid (a preservative), rosemary extract, silicon dioxide, vegetable oil

      • No corn, wheat, or artificial color
      • Reviewers report less itching
      • Inexpensive option
      • Made in the USA
      • Lower Omega-3 content than some competitors
      • Not for picky eaters

      9. Grizzly Salmon Plus Omega Fatty Acids Supplement

      best fish oil supplements for dogs

      You’ll find nothing but fish oils in Grizzly Salmon Plus Omega Fatty Acids Supplement, and your dog will love that pure fish taste while seeing body-wide benefits. The salmon, pollock, and whitefish that make up this oil are wild-caught off the Alaskan coast, and salmon pack more fatty acids than farmed fish, so you’ll find higher Omega 3 levels in Grizzly’s salmon oil than in most competitors. And when only using one pump a day, one bottle of this best fish oil supplement will last for an estimated 270 days.

      Delivery method: Liquid

      Serving Size: 1 pump (3.5 ML) per 12 – 25 lbs. of bodyweight

      Calories: 30 cal. per pump

      Omega-3 content per teaspoon: 1285 mg

      DHA per teaspoon: 460 mg

      EPA per teaspoon: 600 mg

      Ingredients: Wild Alaskan Salmon Oil, Wild Alaskan Pollock Oil, Alaskan Wild Whitefish Oil, tocopherols

      • Great for slowing shedding
      • Dogs love the taste
      • Wild-caught salmon, pollock, and whitefish
      • Caught and made in Alaska
      • Medical-grade pump for accurate dosing
      • Priced on the high side

      10. Vetoquinol Triglyceride Omega Liquid Dog & Cat Supplement

      best fish oil supplements for dogs

      Another premium choice among the best fish oils for dogs, Vetoquinol Triglyceride Omega Liquid Supplement, can be given to cats and dogs no matter their size, with dosages formulated for furry ones weighing as little as eight pounds on up to the big dogs that tip scales at one hundred pounds. This vet-recommended fish oil exists in its natural triglyceride form, which is more bio-available than other forms. And if your pup is picky about fishy tastes, you can find this same formula in capsule form.

      Delivery method: Liquid

      Serving Size: One pump (1 ML) per 20 – 39 lbs.

      Calories: 8.5kcal/ML

      Fish oil content per pump: 1,000 mg

      DHA per serving: 120 mg

      EPA per serving: 180 mg

      Ingredients: Fish Oil, dl-alpha-Tocopherol (source of Vitamin E), Vitamin A Palmitate, Vitamin D3 Supplement

      • No mercury, lead, or PCBs
      • Vet recommended
      • Triglyceride (TG) form fish oil for optimal uptake
      • Liquid form ensures full dose is received
      • Pump included
      • May cause fishy breath

      11. Nulo Functional Omega Dog Supplement

      best fish oil supplements for dogs
      Nulo Functional Omega Dog Supplements are crafted with a variety of functional ingredients, including their Marine Fish Oil, a blend of sardine, herring, mackerel, and anchovy. Coconut oil, dried kelp, and organic turmeric round out the healing ingredients, all working together to deliver beneficial Omega-3, -6, & -9 fatty acids for skin and coat health, a strong immune system, and cognitive prowess. And these tasty fish oil chews keep it natural by excluding corn, wheat gluten, soy, artificial preservatives, colors, and fake flavoring from their recipes. Nulo products are developed in collaboration with veterinarians, animal nutritionists, and companion animal dermatology specialists.

      Delivery method: Soft chew

      Serving Size: 1 chew daily for up to 25 lbs.

      Calories: 25 kcal/2 chews

      Omega-3 content per 2 chews: 155 mg

      DHA per 2 chews: 50 mg

      EPA per 2 chews: 80 mg

      Ingredients: Chickpea Flour, Brewers Dried Yeast, Sunflower Lecithin, Vegetable Glycerin, Water, Fish Oil, Safflower Oil, Organic Honey, Gelatin, Coconut Oil, Dried Kelp, Dried Bacillus coagulans Fermentation Product, Natural Flavor, Ascorbic Acid (Vitamin C), Biotin (Vitamin B7), d-Alpha Tocopherol Acetate (Vitamin E), Organic Turmeric

      • Contains Omega-3, -6, & -9 combination for overall health
      • Made with chickpea flour for food sensitivities
      • Developed by veterinarians and animal nutritionists
      • No fishy breath
      • Chews can be added to dog food
      • May help with your dog’s seasonal allergies
      • Not a single one-star review on Amazon; all ratings two stars and above
      • Manufactured in the USA
      • No mention of taste by reviewers

      Related: The 9 Best Salmon Oils for Dogs


      12. Native Pet Omega Oil for Dogs

      best fish oil supplements for dogs

      Native Pet Omega Oil for Dogs is made with only five ingredients, including wild-caught salmon and pollock oil, wheat germ oil, and biotin, delivering an optimal blend of EPA, DHA, and vitamin E. It’s also free of additives and preservatives for a clean dose of fish oil delight for your dog! To serve, simply pump the recommended dosage for your dog’s weight over their food to provide relief from joint pain, skin irritation, and itching. This high-quality omega oil is clean-label, vet-developed, wild-caught, and made in the USA.

      Delivery method: Liquid

      Serving Size: 1 pump per 10 lbs.

      Calories: 17 calories per pump

      Omega-3, 6, 9 content per serving: 920 mg/1 tsp

      Ingredients list: Wild-caught pollock, salmon oil, wheat germ oil, biotin, and natural tocopherol

      • Easy-to-use pump delivery
      • Wild-sourced salmon and pollock oil
      • Contains wheat-free wheat germ
      • Also provides vitamin B7 (biotin)
      • Picky eaters love the taste
      • Designed by leading vet nutritionists
      • 100% customer satisfaction guarantee
      • Reviewing dog parents mention a strong fishy smell


      best fish oil for dogs

      Things to Consider When Choosing the Best Fish Oil Supplements for Dogs:


      When choosing supplements, opt for those that include EPA and DHA, the most beneficial types of Omega-3s for dogs. These essential nutrients can be sourced from fish oil for dogs or algae oil. It’s important to select products that utilize wild-caught and sustainable methods to ensure quality and environmental responsibility.


      Choose a product tested for purity and contaminants, such as heavy metals or pesticides. Any brand that doesn’t provide test results may not be the right one for your dog. Also, look for natural and organic labeling to get the cleanest and safest product.


      Be sure to follow the recommended dosage for your dog’s size and needs. Products should list dosages per weight, but the Colorado State University James L. Voss Veterinary Teaching Hospital offers this Canine Fish Oil Dosing Chart for reference.


      Omega-3 supplements for dogs can be found in capsules, liquids, or chewable tablets. For some, giving their pup a soft chew or a gel capsule is the easiest way to dose their dog and can help reduce the fishy breath that sometimes comes with fish oil. But the ultimate ease is pumping fish oil liquid over their dinner. Liquid forms can also help ensure your pup receives the full dose, as sometimes capsules may not fully melt for optimal absorption. Really, all forms work great for dosing your dog with beneficial fish oil. It’s up to you to decide which delivery method works best for your pup.

      best fish oil supplements for dogs
      Frequently Asked Questions About the Best Omega-3 and Fish Oil Supplements for Dogs:

      What are the benefits of Omega-3 supplements for dogs?

      Omega-3 supplements can help support joint health, improve skin and coat conditions, and may have anti-inflammatory effects.

      How do I choose the best Omega-3 supplement for my dog?

      Look for a high-quality product that contains EPA and DHA, is tested for purity, and comes in a form that’s easy for you to administer to your dog. Also, if your dog has food sensitivities, check ingredient lists to be sure they’re suitable for your pup.

      How do I know if my dog is getting enough Omega-3s?

      A deficiency in Omega-3s can cause dry, flaky skin, a dull coat, and poor joint health. If you’re concerned your dog may not get enough Omega-3s, talk to your veterinarian. And then, consult our list of the best fish oils for dogs to find your perfect choice.

      Can my dog have too much Omega-3?

      It is possible to give your dog too much Omega-3, but it is unlikely if you’re following recommended dosages. If you’re giving your dog a fish oil supplement, it is crucial to follow the recommended dosage and not exceed it.

      Can all dogs benefit from Omega-3 supplements?

      Omega-3 supplements may benefit dogs with certain health conditions, such as joint problems or inflammatory conditions. However, all dogs can potentially benefit from the added support for skin, coat, and overall health. Consult your veterinarian to determine if an Omega-3 supplement is appropriate for your dog.

      Best Fish Oil Supplements for Dogs

      Before you toss your pup a fish oil chew or pump some on their food, don’t forget to consult with your veterinarian. Chances are, your vet will approve of any of the choices on our list of the best fish oil supplements for dogs. Plus, they can recommend the perfect dose for your dog’s needs!

      Looking for more ways to keep your dog in shape?
      Check out 12 Things To Sneak Into Your Dog’s Food To Boost Their Health.

      fish oil for dogs

      best fish oil supplements for dogs

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