Your dog may not need more food—they may simply need more of the right fats. Omega-3 fatty acids play an important role in supporting healthy skin and coat, joint comfort, heart function, brain health, and the body’s normal inflammatory response. But not all omega-3 supplements are created equal, and differences in EPA and DHA content, sourcing, purity, freshness, and dosage can significantly affect their value. Choosing the best omega-3 for dogs is especially important for owners looking to support long-term wellness or address concerns such as dry skin, stiff joints, or age-related changes. With fish oils, krill oils, algae-based products, chews, and liquid supplements crowding the market, knowing what actually matters can save you from an ineffective purchase. In this guide, we’ll break down the best omega-3 options for dogs, what to look for on the label, key benefits, proper dosing considerations, and how to choose the right supplement for your dog.
Latest Research on the Benefits of Omega-3 for Dogs
According to the latest research, omega-3 fatty acids—especially EPA and DHA—may support joint comfort, cardiovascular health, and overall well-being in dogs. Benefits can vary by condition, so the right source and dose should be tailored to each dog’s needs.
📄Research Update — Joint Comfort
Omega-3 Supplementation May Support Mobility and Comfort
Recent research found that omega-3 supplementation increased dogs’ Omega-3 Index and was associated with improvements in measures related to pain and quality of life. These findings add to existing evidence that EPA and DHA may be useful nutritional support for dogs experiencing joint discomfort or reduced mobility.[1]
📊Clinical Focus — Heart Health
EPA and DHA May Provide Cardiovascular Support in Some Dogs
Research involving dogs with myxomatous mitral valve disease found potentially beneficial effects from omega-3 fatty acid supplementation, including changes in markers associated with inflammation, oxidative stress, and cardiovascular health. Omega-3s should be considered supportive nutrition rather than a replacement for veterinary heart treatment.[2]
⚠️Evidence Review — EPA & DHA
The Benefits of Omega-3s Depend on the Dog and the Condition
A systematic review of EPA and DHA supplementation found promising therapeutic benefits across several health conditions in companion animals, but the strength of evidence varied by disease and study. This means omega-3s can be valuable nutritional tools, while the appropriate source, dose, and expected benefit should still be tailored to the individual dog.[3]
When to Use Omega-3 for Dogs & When Not To
Omega-3 supplements can be useful when a dog’s regular diet does not provide enough EPA and DHA, but they are not appropriate for every dog. Use this quick guide to know when supplementation may make sense and when veterinary advice is recommended.
Situation
Omega-3 May Be Appropriate
Use Caution or Ask Your Vet
Low EPA/DHA intake
Diet provides little marine-based omega-3.
Diet already contains substantial EPA and DHA.
Skin & coat concerns
Dry skin, excessive flaking, or poor coat condition.
Persistent itching, sores, or suspected allergies need diagnosis.
Weight management
Supplement fits within daily calorie needs.
Extra oil could contribute to unwanted weight gain.
Sensitive digestion
Dog tolerates dietary fats well.
History of pancreatitis or frequent digestive upset.
Medications or surgery
Veterinarian confirms supplementation is suitable.
Blood-thinning drugs, clotting problems, or upcoming surgery.
Balanced therapeutic diet
Vet recommends additional EPA and DHA.
Avoid automatically adding supplements to prescription diets.
Remember to ALWAYS consult with your vet before making any changes that could affect your dog’s health, nutrition, or well-being. If you can’t reach your vet, you can chat live with a registered online veterinary professional via our online vet chat or video chat support(24 hours a day, 7 days a week). Or use Chewy’s online vet services(6 a.m. – midnight ET). Additionally, at-home dog gut health tests can analyze your dog’s microbiome, offering insights into which nutrients their diet should include. Similarly, at-home dog allergy testing kits can identify ingredients that may not be suitable for your dog, enabling you to choose the right diet and care plan to support optimal digestion, nutrition, and health.
Best Omega-3s for Dogs
Here are the best omega-3s for dogs this year.
Best Overall Omega-3 for Dogs
4.8
★★★★★
Chew+Health
Who It’s For: Dog owners who want a well-rounded omega-3 supplement with strong EPA and DHA levels to support skin, joints, heart health, and everyday wellness.
Why we recommended it:Chew + Health Wild Alaskan Salmon Oil Formula contains oil sourced from wild-caught Alaskan salmon, a naturally rich source of EPA and DHA that supports skin, coat, joint, heart, and immune health. The formula is minimally processed and free from artificial preservatives, which helps preserve fatty acid integrity over time. It’s packaged in a dark, protective bottle with a pump to reduce oxidation and make daily use consistent. The oil is filtered to remove heavy metals and contaminants, an important detail for long-term supplementation. It mixes smoothly with wet or dry food without leaving a strong fishy residue. We like that it focuses on a single, traceable fish source rather than blended oils with unclear origins.
What sets it apart from competitors: 100% wild Alaskan salmon sourcing—no farmed fish blends—ensuring higher purity and MSC-certified sustainability. Many dogs show noticeable coat softness and reduced flaking within a few weeks of consistent use.
Best Premium Omega-3 for Dogs
4.6
★★★★★
Honest Paws
Who It’s For: Dog owners seeking a high-quality omega-3 made with carefully sourced oils, strong EPA and DHA levels, and added attention to purity and freshness.
Why we recommended it:Honest Paws Omega-3 Fish Oil for Dogs and Cats contains essential fatty acids EPA and DHA drawn from wild-caught Alaskan salmon and pollock, nutrients known to nourish skin and coat while supporting joint flexibility, heart health, and immune function. The formulation is traceable and sustainably sourced, which adds a layer of quality assurance compared with generic fish oils from indistinct marine sources. This oil is lightly flavored and blends into food without overpowering smell or taste, reducing the barrier to everyday use. Third-party testing and NASC certification indicate it meets established purity and potency standards. The brand’s transparent ingredient list, sustainability focus, and NASC quality seal give it an edge for owners who care about traceability and third-party verification.
What sets it apart from competitors: Unlike single-fish options, this premium blend of salmon and pollock delivers broader omega-3 potency for superior joint and coat benefits, all NASC-sealed and GMP-certified for unmatched purity. Sustainably wild-caught without farming risks, it prioritizes traceability and eco-practices over mass-produced rivals.
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Best Highest Potency Omega-3 for Dogs
4.5
★★★★★
Pet Honesty
Who It’s For: Dogs that need a concentrated source of EPA and DHA, especially when owners want more omega-3 per serving without giving large amounts of oil.
Why we recommended it:Pet Honesty Wild Alaskan Salmon Oil delivers a concentrated dose of omega-3 fatty acids sourced from wild-caught Alaskan salmon, making it one of the more potent options available without moving into prescription territory. The formula provides a clearly labeled EPA and DHA profile, which is important for owners trying to dose accurately based on weight and health goals. It’s manufactured in a GMP-compliant facility and carries NASC quality certification, adding credibility around purity and consistency. The oil is molecularly distilled to reduce heavy metals and environmental toxins commonly found in fish products. Its pump bottle helps limit oxidation and makes daily dosing more precise. The oil mixes cleanly into food without separating or leaving an overpowering residue. We like that the potency allows smaller serving sizes to achieve therapeutic omega-3 levels.
What sets it apart from competitors: Sustainably sourced without farming contaminants and molecularly distilled for purity, it avoids oxidation issues plaguing cheaper options.
Best Omega-3 for Skin & Coat Health
4.7
★★★★★
Zesty Paws
Who It’s For: Dogs with dry, flaky, itchy skin or a dull coat that may benefit from EPA- and DHA-rich omega-3s to support healthier skin and coat condition.
Why we recommended it:Zesty Paws Wild Alaskan Omega-3 Blend contains a targeted combination of EPA and DHA sourced from wild-caught Alaskan fish, nutrients closely linked to skin barrier support and coat shine. The formula is designed to reduce dryness and flaking by supporting normal inflammatory response in the skin. It’s made in a GMP-compliant facility and carries NASC quality certification, which helps ensure purity and consistent potency. The oil is filtered to reduce heavy metals and environmental contaminants, making it suitable for long-term daily use. Its pump bottle limits oxidation and simplifies dosing, especially for multi-dog households. The blend mixes evenly with food without separating.
What sets it apart from competitors: The pollock-salmon duo yields 19% total Omega-3s, outpacing single-source oils for broader anti-inflammatory effects on skin issues. Steamed extraction keeps nutrients intact unlike harsh methods, with vitamin D naturally included for bonus absorption.
Best Omega-3 for Joint & Mobility Support
4.5
★★★★★
Natural Dog Company
Who It’s For: Dogs with stiffness, reduced mobility, or age-related joint concerns that may benefit from EPA-rich omega-3 support for comfort and movement.
Why we recommended it:Natural Dog Company Wild Alaskan Salmon Oil contains omega-3 fatty acids sourced from wild-caught Alaskan salmon, a natural source of EPA and DHA known for supporting joint comfort and a healthy inflammatory response. The oil is minimally processed and molecularly distilled to help reduce heavy metals and environmental contaminants. It’s manufactured in the U.S. and formulated without artificial preservatives, colors, or fillers, making it suitable for long-term daily use. The pump bottle helps protect the oil from oxidation while making consistent dosing easier. It blends smoothly into food without strong separation or residue. The EPA-forward profile makes it particularly useful for dogs needing mobility support rather than general wellness alone.
What sets it apart from competitors: Exceptional 26% total Omega-3 and 11% DHA levels target joints more effectively than average 15-20% formulas, with pollock-salmon mix for balanced potency. Single-ingredient purity skips additives, and steam-extraction preserves freshness longer than chemical rivals.
Best Budget Omega-3 for Dogs
4.6
★★★★★
Native Pet
Who It’s For: Dog owners who want dependable EPA and DHA support for skin, coat, joints, and general health without paying a premium price.
Why we recommended it:Native Pet Omega Oil Wild Alaskan Fish for Dogs features oil sourced from wild-caught Alaskan fish, providing natural omega-3 fatty acids that support skin, coat, joint comfort, and overall wellness. The formula keeps things intentionally simple, avoiding artificial flavors, fillers, or unnecessary additives that can complicate digestion. It’s produced in the U.S. and follows quality and safety standards aimed at consistency and cleanliness. The liquid blends smoothly into food, making daily use realistic rather than aspirational. The pump-style bottle helps with portion control and reduces exposure to air, which can degrade oils over time. While it’s not the most concentrated option, the dosage is adequate for everyday maintenance.
What sets it apart from competitors: Unique omega 3-6-9 balance from fish plus wheat germ oils outperforms single-omega rivals, adding biotin for superior skin barrier strength at budget rates. Offers dependable omegas support at a price point that makes long-term use more sustainable.
Best Omega-3 Softgels for Dogs
4.6
★★★★★
Nutri-Vet
Who It’s For: Dog owners who prefer premeasured omega-3 softgels that are easy to dose, less messy than liquid fish oil, and convenient for daily use.
Why we recommended it:Nutri-Vet Fish Oil Supplement for Dogs provides a clearly labeled and standardized dose of omega-3 fatty acids, including EPA and DHA, in an easy-to-administer softgel. Each capsule delivers a predictable amount of fish oil, which helps eliminate dosing guesswork common with liquid oils. The formula is purified to remove mercury and environmental contaminants, making it suitable for long-term use. It’s manufactured under strict quality controls and backed by a brand with decades of experience in veterinary supplements. The softgels are easy to give whole or can be punctured and mixed into food if needed. They don’t require refrigeration and maintain stability better than many liquid oils once opened. We like that the dosing consistency makes it easier to track daily omega-3 intake across weeks or months.
What sets it apart from competitors: Softgel format eliminates leaks and fish smells plaguing liquids. Menhaden sourcing provides balanced EPA/DHA without heavy metal risks, plus added vitamins A/D/E for amplified antioxidant protection.
Best Omega-3 with Hemp for Dogs
4.7
★★★★★
Innovet
Who It’s For: Dog owners seeking omega-3 support paired with hemp-derived ingredients for dogs that need broader support for skin, joints, and everyday comfort.
Why we recommended it:Innovet Wild Alaskan Salmon Oil with Hemp combines wild-caught Alaskan salmon oil with hemp extract to support skin, coat, joints, and overall balance. The salmon oil provides natural EPA and DHA, fatty acids linked to healthy inflammatory response and mobility support. Hemp adds complementary plant-based fatty acids that may help support calm behavior and joint comfort without sedative effects. The oil is filtered to reduce heavy metals and contaminants and produced under quality-controlled manufacturing standards. It blends smoothly into food and doesn’t overpower meals with a strong odor. The pump bottle helps preserve freshness by limiting exposure to air. We like that it addresses both physical and comfort-related needs in one daily supplement.
What sets it apart from competitors: Hemp seed oil enrichment adds rare terpenes and CBG/CBN, delivering broader anti-inflammatory synergy than salmon-only rivals. No-THC compliance ensures safety without psychoactive risks, with steam-processed purity preserving total omegas.
Best Bulk Omega-3 for Dogs
4.7
★★★★★
Grizzly Pet
Who It’s For: Multi-dog households or owners of large dogs who use omega-3 daily and want a larger supply that offers better value per serving.
Why we recommended it:Grizzly Salmon Oil Omega 3 Fatty Acids is made from wild-caught Alaskan salmon and formulated specifically for dogs and cats, delivering naturally occurring EPA and DHA to support skin health, coat quality, joint comfort, and immune function. The oil is purified by molecular distillation to remove heavy metals and other environmental contaminants. It’s manufactured to strict quality standards and has long been a staple in the veterinary and breeding communities. The product uses a pump system designed for large containers to help control oxidation and maintain freshness over time. It blends easily into food without excessive separation. The EPA-forward profile makes it useful for dogs with mobility or inflammatory concerns.
What sets it apart from competitors: Gallon bulk sizing slashes per-ounce costs dramatically versus 8-16 oz rivals, with superior 11:1 Omega balance from salmon-pollock blend targeting inflammation better than generic fish oils.
Best Omega-3 Chews for Dogs
4.7
★★★★★
Nutramax
Who It’s For: Dogs that resist oils or capsules and do better with flavored omega-3 chews that make daily EPA and DHA supplementation feel like a treat.
Why we recommended it:Nutramax Welactin Omega-3 Supplement for Dogs delivers a veterinarian-formulated dose of EPA and DHA in an easy-to-administer chew format. The omega-3s are derived from purified fish oil and formulated to support healthy skin, coat quality, joint comfort, and cardiovascular function. Nutramax manufactures this product under strict quality controls and is widely trusted in veterinary settings, which adds confidence around consistency and safety. The chews are palatable enough to be given as treats, reducing compliance issues common with liquids. They provide clearly defined dosing per chew, which helps owners stay consistent over time. The formulation avoids unnecessary fillers that could interfere with digestion. We like that it bridges the gap between clinical credibility and everyday convenience.
What sets it apart from competitors: Backed by Nutramax’s clinical research for proven outcomes. Soft chew texture outperforms hard bites for seniors with dental issues, with precise dosing per piece avoiding guesswork. Portable pouch resists melting better than gels in warm climates.
Best FOmega-3 Alternative for Dogs
4.5
★★★★★
Silver Lining Herbs
Who It’s For: Dogs that cannot tolerate traditional fish oil, or owners seeking a nonstandard omega-3 source while still prioritizing useful EPA and DHA.
Why we recommended it:Silver Lining Herbs Omega Shine for Canines combines organic hemp seed oil, coconut oil, flaxseed oil, and non-GMO soybean oil rich in Omega 3-6-9 fatty acids plus vitamin E to promote silky coats, flexible joints, and healthy skin without fishy aftertaste or mess. A teaspoon per 25 lbs mixes seamlessly into meals—pups lap it up thanks to the mild nutty flavor that picky eaters embrace over pungent alternatives. All-natural and free of fillers, it bolsters immunity and heart function while the triple oil blend hydrates from the inside for visible softness in weeks. We like how it serves as a clean fish oil swap for allergy-prone dogs. Antioxidants combat oxidative stress, enhancing overall glow and stamina across life stages.
What sets it apart from competitors: Fish-free triple oil blend (hemp, coconut, flax) matches omega potency plant-style, dodging allergen risks while adding amino acids for superior skin repair versus marine singles. Vitamin E preservation extends shelf life naturally, outperforming oxidized rivals. Versatile liquid suits raw or kibble diets without separation issues.
Best Omega-3 with No Fishy Aftertaste
4.7
★★★★★
Fortifeye
Who It’s For: Dogs and owners sensitive to fishy odors or burps who want omega-3 support in a cleaner-tasting formula that is easier to give every day.
Why we recommended it:Fortifeye Super Omega-3 Max Fish Oil supplies ultra-concentrated rTG form wild-caught fish oil with 1200mg EPA, 900mg DHA, and 300mg DPA per two softgels, powerfully reducing inflammation for glossier coats and easier movement in demanding pets. The Norwegian-purified capsules swallow cleanly with no fishy burps, thanks to lemon flavoring—two daily for medium-large dogs mix into food or treat as rewards without spills. Physician-recommended for purity exceeding IFOS standards, it bolsters heart, brain, and eye function using small non-predatory fish low in contaminants. We like the compact dosing, matching the liquid potency in fewer pills. Natural triglyceride form absorbs 70% better than ethyl esters, building resilience over consistent use. The softgels remain stable without refrigeration and are less prone to oxidation than opened liquid oils. The neutral taste profile makes long-term compliance much easier for sensitive dogs. It’s commonly used in veterinary eye-health protocols, which adds credibility beyond general wellness use. We like that it combines high purity with excellent palatability, which is rare in fish oil supplements.
What sets it apart from competitors: Unlike most pet fish oils, this formula is refined to human-grade standards with a strong emphasis on odor control and purity. The softgel format eliminates messy dosing and fishy residue altogether. Its high EPA and DHA concentration per capsule allows effective dosing without large volumes. The oil is molecularly distilled to remove heavy metals and impurities, which also helps reduce the fishy aftertaste common in lower-quality oils.
Other Omega-3 for Dogs
Best Sustainably Sourced Omega-3 for Dogs: Nordic Naturals Omega-3 Pet earns the top spot for sustainably sourced fish oil thanks to its human-grade quality and strict purity standards. Made from wild-caught anchovies and sardines, it delivers a highly bioavailable dose of EPA and DHA without artificial additives. The oil is molecularly distilled to remove heavy metals and toxins, which is a key reason veterinarians trust the brand. Its clean sourcing and transparent testing make it ideal for owners who care about both their dog’s health and environmental impact. Dogs benefit from improved skin, coat, joints, and overall wellness with consistent use.
Best Omega-3 for Large & Giant Dogs: Vetoquinol Triglyceride Omega-3 Supplement stands out for large and giant dogs due to its high-potency, veterinary-formulated triglyceride oil. The triglyceride form improves absorption, which is especially important for bigger dogs that require higher omega-3 doses. It’s commonly used in clinical settings to support joint mobility, heart health, and immune function. Owners appreciate that it’s specifically dosed for larger breeds, eliminating the guesswork of multiple pumps or capsules. This targeted formulation makes it a reliable choice for dogs with higher body weight and greater nutritional demands.
Best Vet-Recommended Omega-3 for Dogs: Dr. Harvey’s Health & Shine Omega-3 Fish Oil is a favorite among holistic and integrative veterinarians for its clean, whole-fish sourcing. Made from wild-caught mackerel, anchovies, and sardines, it delivers naturally balanced EPA and DHA without synthetic concentration. The oil is cold-processed and free from fillers, preservatives, and artificial flavors. Its focus on ingredient integrity and gentle processing supports skin, coat, joints, and inflammation control. This makes it an excellent choice for dogs needing long-term omega-3 support under veterinary guidance.
Best Omega-3 for Senior Dogs: LEGITPET Wild Alaskan Salmon Oil is especially well-suited for senior dogs who need joint, brain, and heart support as they age. Sourced from wild Alaskan salmon, it provides a natural balance of omega-3s that help reduce inflammation and stiffness. The liquid formula is easy to mix into food, which is helpful for older dogs with dental issues or reduced appetite. Owners often notice improvements in mobility, coat quality, and cognitive sharpness over time. Its simple, single-ingredient formula makes it gentle enough for long-term daily use.
Best Omega-3 for Puppies: Vital Pet Life Salmon Oil is an excellent choice for puppies thanks to its mild flavor and balanced omega-3 profile. It supports healthy brain development, vision, and immune function during critical growth stages. The oil is easy to dose and gentle on young digestive systems, making it suitable for daily use. Owners appreciate that it can be used for both dogs and cats, which adds flexibility for multi-pet households. Its focus on early development makes it a strong foundational supplement for growing pups.
Best Wild-Caught Omega-3 for Dogs: Wholistic Pet Organics Wild Alaskan Salmon Oil wins for wild-caught sourcing and minimal processing. Made from sustainably harvested Alaskan salmon, it delivers natural omega-3s without chemical refinement. The oil is free from artificial preservatives and supports skin health, coat shine, and joint comfort. Its straightforward ingredient list appeals to owners who prioritize clean, species-appropriate nutrition. This makes it a dependable option for dogs with sensitivities or owners seeking a truly natural fish oil supplement.
How Much Omega-3 Should You Give Your Dog?
Omega-3 dosing should be based on the combined amount of EPA + DHA, not the total amount of fish oil listed on the bottle. A commonly cited veterinary supplementation range is about 50–75 mg of EPA + DHA per kg of body weight daily, but dogs being treated for specific health conditions may need individualized dosing from a veterinarian.
Dog Weight
EPA + DHA Per Day
What to Check
Key Consideration
11 lb (5 kg)
About 250–375 mg
EPA + DHA listed per serving.
Start at the lower end unless your vet advises otherwise.
22 lb (10 kg)
About 500–750 mg
Check how many pumps, capsules, or chews provide this amount.
Count omega-3 already supplied by the dog’s diet.
44 lb (20 kg)
About 1,000–1,500 mg
Use combined EPA + DHA, not total fish oil.
Therapeutic diets may already provide substantial omega-3.
66 lb (30 kg)
About 1,500–2,250 mg
Follow the product’s EPA and DHA concentrations carefully.
Higher amounts should be discussed with your veterinarian.
88 lb (40 kg)
About 2,000–3,000 mg
Measure liquid oils accurately.
Dose may differ when omega-3 is used for a medical condition.
Omega-3 for Dogs: Potential Side Effects & Safety Considerations
Omega-3 supplements are generally well tolerated when used appropriately, but fish oil can cause digestive upset and other problems in some dogs. Extra caution is appropriate for dogs with certain medical conditions or those taking medications that may interact with fish oil.
Safety Factor
Watch For
Why It Matters
What to Do
Digestive upset
Loose stool, nausea, poor appetite.
Fish oil may upset sensitive stomachs.
Reduce or stop and call your vet if persistent.
Extra calories
Weight gain.
Fish oil adds fat and calories.
Count it toward daily calories.
Bleeding risk
Easy bruising or prolonged bleeding.
High intakes may affect clotting.
Ask your vet if your dog has clotting issues.
Medication interactions
Use with NSAIDs or blood thinners.
Fish oil may interact with some drugs.
Review medications with your vet.
Pancreatitis
Vomiting, pain, lethargy.
Extra fat may not suit high-risk dogs.
Use only with veterinary guidance.
Product quality
Rancid smell or expired oil.
Omega-3 oils can oxidize.
Store properly and replace expired products.
The Bottom Line
Choosing the best omega-3 for dogs comes down to finding a quality supplement with clearly stated EPA and DHA levels, reliable sourcing, and a format your dog will take consistently. Omega-3 fatty acids can support skin and coat health, joint comfort, heart health, and overall wellness when used appropriately. When comparing products, focus on the actual EPA and DHA content rather than the total amount of fish oil. The right daily amount depends on your dog’s weight, diet, health status, and existing omega-3 intake. Because fish oil adds fat and calories and may cause side effects in some dogs, giving more is not necessarily better. Dogs with medical conditions or those taking medications should receive omega-3 supplements with veterinary guidance. With the right product and appropriate dose, omega-3 supplementation can be a practical addition to your dog’s daily routine.
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Sources
Canine Bible uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process and product review methodology to learn more about how we fact-check, test products, and keep our content accurate, reliable, and trustworthy.
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