Best Dog Omega-3 & Fish Oil Supplements (2026) – Top 10 Reviewed
Omega-3 and fish oil supplements provide essential fatty acids that dogs can’t produce on their own. These supplements support skin and coat health, reduce inflammation, and promote heart, brain, and joint function—especially important for senior dogs and breeds prone to skin issues.
The best fish oil supplements for dogs use high-quality sources like salmon or anchovy oil, deliver effective doses of EPA and DHA fatty acids, and come in forms your dog will actually eat. Here are our top 10 picks for 2026.
| Product | Key Ingredients | Count | Form | Best For |
|---|---|---|---|---|
| Omega for Dogs by Chewies | Salmon Oil, Omega 3-6-9, Vitamins | 180 | Soft Chews | Best Overall |
| Omega 3 for Dogs Fish Oil Chews | EPA, DHA, Salmon Oil, Vitamins | 120 | Soft Chews | Best Value |
| Omega 3 for Dogs (180 Ct) | Fish Oil, Omega 3-6, Antioxidants | 180 | Soft Chews | Best Budget Option |
| ZEBORA Salmon Oil Chews | Omega 3-6-9, Vitamins C & E | 120 | Soft Chews | Best for Skin & Coat |
| StrellaLab Omega 3 for Dogs | Fish Oil, Omega 3-6-9, Biotin | 180 | Soft Chews | Best for Shedding |
| BARK&SPARK Omega 3 Fish Oil | Salmon Oil, EPA, DHA | 180 | Soft Chews | Best for Large Dogs |
| Natural Dog Company Omega Bundle | Fish Oil Liquid, Turmeric | 16oz + 90ct | Liquid + Chews | Best for Senior Dogs |
| Probiotics + Fish Oil Combo | Probiotics, Pumpkin, Fish Oil | 120 | Soft Chews | Best Multi-Benefit |
| Natural Dog Company Ultra Omega Oil | Omega-3, Multivitamins | Varies | Chews + Oil | Best for Active Dogs |
| StrellaLab Omega 3 (Purple) | Fish Oil, EPA, DHA, Biotin | 180 | Soft Chews | Best High-Potency |
1. Omega for Dogs by Chewies – Best Overall
Why it stands out: This supplement delivers a complete omega fatty acid profile with 3-6-9 in a highly palatable peanut butter flavor that even picky eaters love. The 180-count jar provides excellent value for multi-dog households.
Made with salmon oil as the primary ingredient, these soft chews provide essential fatty acids plus added vitamins to support overall health. The formula targets skin and coat health while also providing itch relief for dogs with dry, flaky skin. Dogs of all sizes can benefit, with dosing based on weight. The peanut butter flavor makes daily supplementation easy.
Pros:
- Complete omega 3-6-9 profile
- 180-count jar offers great value
- Peanut butter flavor dogs love
- Supports skin, coat, and itch relief
Cons:
- Contains added flavoring that some dogs may be sensitive to
Best for: Dog owners wanting a comprehensive, tasty omega supplement that covers all the bases.
2. Omega 3 for Dogs Fish Oil Chews – Best Value
Why it stands out: With EPA and DHA fatty acids from salmon oil plus added vitamins, this formula delivers clinical-grade fish oil benefits at a competitive price point. The chicken flavor ensures high acceptance rates.
These soft chews specifically target dogs with itchy, dry, or shedding skin. The salmon oil base provides bioavailable omega-3s that absorb quickly. Each chew contains a measured dose of EPA and DHA, making it easy to track your dog’s daily intake. The 120-count package suits medium-sized dogs for about 2-4 months of supplementation.
Pros:
- EPA and DHA clearly listed
- Salmon oil base for high bioavailability
- Chicken flavor for picky eaters
- Targets shedding and dry skin
Cons:
- 120 count runs out faster for large breed owners
Best for: Budget-conscious pet parents who still want quality omega-3 supplementation with measurable EPA/DHA content.
3. Omega 3 for Dogs (180 Ct) – Best Budget Option
Why it stands out: Made in the USA with a fish oil blend, antioxidants, and minerals, this supplement provides comprehensive omega support without breaking the bank. The 180-count size delivers months of daily doses.
This formula combines omega-3 and omega-6 fatty acids with antioxidants and essential minerals for whole-body support. The soft chew format is easy to administer as a treat or mixed with food. It’s designed to support skin health, coat shine, and immune function. Made in USA facilities with quality-sourced ingredients.
Pros:
- Made in USA
- 180 soft chews per jar
- Added antioxidants and minerals
- Budget-friendly pricing
Cons:
- Fish oil blend rather than single-source salmon
Best for: Pet owners looking for an affordable daily omega supplement with added nutritional benefits.
4. ZEBORA Salmon Oil Chews – Best for Skin & Coat
Why it stands out: This formula specifically targets skin and coat health with a complete omega 3-6-9 profile plus vitamins C and E for antioxidant support. Ideal for dogs with chronic skin issues or dull coats.
ZEBORA’s salmon oil chews deliver EPA and DHA from wild-caught salmon, enhanced with vitamins C and E to fight oxidative stress. The formula addresses itchy skin, excessive shedding, and allergy-related skin problems. The soft chew format makes dosing simple—just follow the weight-based guidelines on the package. Results typically appear within 4-6 weeks of consistent use.
Pros:
- Wild-caught salmon source
- Added vitamins C and E
- Targets allergy-related skin issues
- Reduces shedding effectively
Cons:
- 120-count may not last as long for large dogs
Best for: Dogs with persistent skin problems, allergies, or dull, brittle coats needing intensive omega support.
5. StrellaLab Omega 3 for Dogs – Best for Shedding
Why it stands out: Formulated specifically to address excessive shedding and promote a shiny, healthy coat, this supplement combines fish oil with biotin for enhanced skin and coat benefits.
StrellaLab’s formula tackles shedding from multiple angles: omega fatty acids nourish skin from within, while biotin strengthens hair follicles. The 180-chew jar provides about 3-6 months of supplementation depending on your dog’s size. Many pet parents report noticeably reduced shedding within the first month. The treats also support allergy relief and overall skin health.
Pros:
- Contains biotin for coat health
- 180 soft chews per container
- Specifically targets shedding
- Also supports allergy relief
Cons:
- May take 4-6 weeks to see full results
Best for: Heavy shedders and dogs with thin, lackluster coats that need both omega-3s and biotin support.
6. BARK&SPARK Omega 3 Fish Oil – Best for Large Dogs
Why it stands out: With 180 fish oil treats per jar and dosing designed for larger breeds, this salmon oil supplement delivers high concentrations of EPA and DHA that big dogs need for skin, coat, and joint support.
Large breed dogs require higher doses of omega-3s, and BARK&SPARK delivers with generous EPA and DHA content per chew. The salmon oil base provides premium fatty acids that support not just skin and coat, but also joint health—crucial for larger breeds prone to hip and joint issues. The formula also addresses hot spots and seasonal allergies.
Pros:
- High EPA and DHA content
- Sized for large breed needs
- Supports joints as well as skin
- Addresses hot spots and allergies
Cons:
- Higher dose per chew may be too much for small dogs
Best for: Large breed dogs (50+ lbs) needing robust omega-3 support for skin, coat, and joint health.
7. Natural Dog Company Senior Dog Bundle – Best for Senior Dogs
Why it stands out: This combination of liquid fish oil and senior wellness chews delivers targeted support for aging dogs, including brain health, heart function, and mobility—all powered by omega-3s and turmeric.
Senior dogs have unique nutritional needs, and this bundle addresses them comprehensively. The 16oz liquid fish oil can be added to food for dogs who struggle with chews, while the senior wellness chews provide additional support with lion’s mane for cognitive function. Together, they support mobility, heart health, eye health, and mental sharpness in aging dogs.
Pros:
- Liquid option for dogs with dental issues
- Includes cognitive support ingredients
- Specifically formulated for senior needs
- Turmeric for inflammation
Cons:
- Two-product system costs more than single supplements
Best for: Senior dogs (7+ years) needing comprehensive omega support plus cognitive and mobility benefits.
8. Probiotics + Fish Oil Combo – Best Multi-Benefit
Why it stands out: This unique formula combines probiotics for gut health with fish oil for skin and coat, addressing two common concerns in one daily chew. Added pumpkin supports digestive regularity.
Many dogs with skin issues also have underlying digestive problems, and this supplement tackles both. The probiotic blend supports healthy gut bacteria, while the fish oil delivers omega-3s for skin and coat. Pumpkin fiber aids digestion and helps with loose stools. The 120-count jar provides 2-4 months of daily supplementation depending on dog size.
Pros:
- Combines probiotics and fish oil
- Added pumpkin for digestion
- Addresses gut-skin connection
- 120 soft chews
Cons:
- May not be as potent for severe skin issues as dedicated fish oil supplements
Best for: Dogs with both digestive sensitivities and skin/coat issues who benefit from a combined approach.
9. Natural Dog Company Ultra Omega Oil – Best for Active Dogs
Why it stands out: Designed for active and working dogs, this omega supplement pairs with multivitamins to support cognitive health, overall vitality, and the increased nutritional demands of high-energy lifestyles.
Active dogs burn through nutrients faster and need premium supplementation to maintain peak performance. This combination delivers omega-3s alongside essential vitamins that support energy metabolism, muscle recovery, and brain function. The formula works well for sporting dogs, hiking companions, and any high-activity canine athletes.
Pros:
- Formulated for active dogs
- Includes essential multivitamins
- Supports cognitive function
- Premium ingredient quality
Cons:
- Combination format may cost more than single supplements
Best for: Working dogs, sporting breeds, and highly active dogs needing enhanced nutritional support.
10. StrellaLab Omega 3 (Purple) – Best High-Potency
Why it stands out: This high-potency formula delivers concentrated EPA and DHA plus biotin for dogs needing maximum omega-3 support. The 180-count jar ensures long-term supplementation.
For dogs with severe skin conditions, chronic inflammation, or those recovering from illness, a high-potency omega supplement makes a difference. StrellaLab’s concentrated formula provides therapeutic levels of EPA and DHA, enhanced with biotin for additional coat support. The fish oil treats are highly palatable and suitable for all breed sizes with weight-based dosing.
Pros:
- High-potency EPA and DHA
- Added biotin for coat health
- 180-count for extended use
- Suitable for all breed sizes
Cons:
- Higher potency may cause loose stools initially—start with half dose
Best for: Dogs with chronic skin conditions or inflammatory issues needing therapeutic-level omega-3 supplementation.
How to Choose the Right Omega-3 Supplement for Your Dog
Key Ingredients to Look For
The most important components in a fish oil supplement are EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). These omega-3 fatty acids provide the anti-inflammatory and skin-supporting benefits you’re looking for. Look for supplements that list specific EPA and DHA amounts rather than just “fish oil.” Salmon oil, anchovy oil, and sardine oil are premium sources with naturally high EPA/DHA content.
Size & Breed Considerations
Most omega supplements provide weight-based dosing guidelines. Large breeds typically need 2-4 chews daily, while small dogs may only need one. For giant breeds over 100 lbs, liquid fish oil supplements often provide more cost-effective dosing than chews. Some breeds like German Shepherds and Golden Retrievers are prone to skin issues and may benefit from higher-potency formulas.
Form Factor: Chews vs Liquid vs Capsules
Soft chews are the most popular format because dogs eat them readily as treats. Liquid fish oils can be poured over food and work well for picky eaters or dogs with dental issues. Capsules are less common for dogs and can be harder to administer. If your dog has food sensitivities, look for limited-ingredient formulas without added flavoring.
What to Avoid
Skip supplements that don’t disclose EPA and DHA content—you have no way to know if they’re effective. Avoid products with artificial preservatives, colors, or excessive fillers. Fish oil can go rancid, so check for antioxidant preservatives like vitamin E (tocopherols) and store opened containers properly. If a supplement smells excessively fishy or “off,” it may be oxidized.
Signs Your Dog May Need Omega-3 Supplements
- Dry, flaky skin: Omega-3 deficiency often shows up as dandruff or dry patches
- Dull, brittle coat: Healthy coats are shiny and smooth—lackluster fur suggests fatty acid deficiency
- Excessive shedding: While some shedding is normal, heavy year-round shedding may indicate nutritional gaps
- Itchy skin and hot spots: Omega-3s have anti-inflammatory properties that can reduce scratching
- Slow wound healing: Essential fatty acids support skin cell regeneration
- Joint stiffness: Omega-3s help reduce inflammation in joints, especially in senior dogs
- Cognitive decline in senior dogs: DHA supports brain health and mental acuity
If your dog shows multiple signs, consult your vet to rule out underlying conditions before starting supplementation.
Side Effects and Safety
Most dogs tolerate omega-3 supplements well, but some may experience loose stools or digestive upset when starting a new supplement. To minimize this, start with half the recommended dose and gradually increase over 1-2 weeks. Fish oil can also cause fishy breath—this is normal and not harmful.
Dogs on blood thinners or those scheduled for surgery should consult a vet before starting omega-3s, as high doses can affect blood clotting. Very high doses may also cause weight gain due to the caloric content of fish oil. Stick to recommended dosing guidelines and store supplements away from heat and light to prevent oxidation.
FAQs
How much omega-3 should I give my dog?
Follow the product’s weight-based guidelines. Generally, dogs need about 20-55mg of combined EPA and DHA per pound of body weight daily. A 50-lb dog might need 1,000-2,750mg total omega-3s per day, depending on their health needs.
How long until I see results from fish oil supplements?
Most pet parents notice improvements in coat shine and reduced shedding within 4-6 weeks. Skin conditions may take 8-12 weeks to show significant improvement. Consistency is key—daily supplementation delivers the best results.
Can I give my puppy omega-3 supplements?
Yes, omega-3s support brain development and immune function in puppies. Look for products specifically labeled safe for puppies, or consult your vet for appropriate dosing. DHA is particularly important for cognitive development in young dogs.
Are there any side effects from fish oil?
The most common side effects are loose stools, fishy breath, and occasional digestive upset. Start with a lower dose and increase gradually. Very high doses may cause weight gain or affect blood clotting. If your dog experiences vomiting or diarrhea, reduce the dose or try a different formula.
Can I give fish oil with other supplements or medications?
Fish oil is generally safe to combine with most supplements. However, if your dog takes blood thinners, anti-inflammatory medications, or is scheduled for surgery, consult your vet first. Omega-3s can enhance the effects of some medications.
What’s the difference between salmon oil and fish oil?
Salmon oil comes specifically from salmon and is naturally high in EPA and DHA. Generic “fish oil” may come from various sources including anchovies, sardines, or mackerel. Both can be effective—what matters most is the actual EPA and DHA content listed on the label.
Final Verdict
For most dogs, Omega for Dogs by Chewies offers the best combination of quality ingredients, palatability, and value with its complete omega 3-6-9 profile and 180-count jar. If you’re on a budget, Omega 3 for Dogs (180 Ct) delivers solid omega support at a lower price point.
For dogs with specific needs, consider ZEBORA Salmon Oil Chews for intensive skin and coat support, Natural Dog Company Senior Bundle for aging dogs, or BARK&SPARK Omega 3 for large breeds needing higher doses. Whatever you choose, consistency matters most—daily supplementation over 6-8 weeks delivers the best results.
