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Daily Serving

Dog Weight - lbs Inactive Dog Active Dog Working Dog
Inactive Dog - Less than 30 minutes of vigorous exercise daily
Active Dog - At least 30 minutes of vigorous exercise daily
Working Dog - More than two hours of vigorous exercise daily
This is only a guide. Please consult your veterinarian to determine the perfect feeding amount for your dog.
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Product Overview

Helps bring your horse’s diet into balance

EO-3™is a DHA and EPA omega-3 fatty acid supplement that balances the modern horse’s omega-3 intake, Kentucky Equine Research developed EO-3™ from a sustainable source of menhaden fish oil in order to provide a direct source of bioavailable DHA and EPA in a palatable minty-apple flavor. EO-3 undergoes advanced distillation and includes a research-proven flavor to create a highly palatable product suitable for all horses. Marine-derived long-chain fatty acids DHA and EPA are more efficiently used as precursors of local hormones than plant-based sources of omega-3 fatty acids. Note: pump is not included with the gallon size. Please purchase separately.

  • Provides 9,450 mg of omega 3 fatty acids and 6,750 mg of DHA and EPA. Minty apple flavored!
  • Supports overall health and wellness, a normal response to inflammation, and more

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Supercharge Your Supplements

  • EO-3™ omega 3 supplement from Kentucky Equine Research
    In this video from KER, discover the benefits of this omega-3 supplement and if it's right for your horse.


The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

EO-3™ is rated 3.6 out of 5 by 25.
Rated 5 out of 5 by from Great product She likes the taste, and it really helped with her sweet itch and hives, more than flax did.
Date published: 2021-11-10
Rated 2 out of 5 by from Great ingredients, horses won’t eat it Ingredient-wise, this is the best omega 3 supplement I’ve found for horses. Unfortunately, they hate the flavor and will not touch it.
Date published: 2021-08-03
Rated 5 out of 5 by from Great Results & Horses Love It I have had my horse on this for about 2 years now after recommendation from my vet. My horse can be very itchy from both bug bites and other allergens, developing hives and repeatedly cutting open her neck, dock, and hocks. The original cherry flavor took slow introducing. She seemed more offended by the strong smell than the taste but got used to it. The new minty apple flavor is an absolute hit! She licks her feed pan to get every last drop. No more hives or excessive rubs, cuts, and sores. She will have the occasional itch but nothing like before. It takes about a month to build up the results. I take her off this for a few months in winter and make sure to restart a month before bugs come out.
Date published: 2021-06-19
Rated 5 out of 5 by from Really works for allergies!! After speaking with the Kentucky Equine Research institute about my 5-year-old mare's seasonal allergies, complete with severe itching and nonstop hives, they recommended that I give this to her as a top dress onto her normal feed. She gets Triple Crown Balancer Timothy cubes and I just drizzle this on the top. Brought her in for a dermatology appointment and had her tested for a lot of different environmental allergens and the dermatologist mentioned that the EFAs can definitely inhibit histamine. I'm super happy to say that as a result of her being on the EO-3 For about 5 weeks, her largest reactions were much smaller than expected! So bottom line is, although we are going to move forward with the allergy shots, the EFAs are definitely working as part of reducing her reactions - so if you have a horse suffering, try this out in addition to the other methods!! It takes some time to start working and I didn't notice a difference until about 3-4 weeks of use, which may be even a little early. (Side note) I've also had her in a fly sheet that has helped some - at least for the bug bites. I use the Bucas Zebra fly sheet and it's not only adorable but it actually does work to reduce the flies on her! I can't get the photos to upload so I'll try a bit later. P.S. Make sure that you buy a pump to go with the bottle! Makes it much easier to administer.
Date published: 2021-06-15
Rated 5 out of 5 by from All 3 horses eat it! Even my picky eaters eat this when mixed with grain. I’ve seen a difference in cost, weight gain, and recovery time. I just wish it wasn’t so expensive.
Date published: 2020-09-04
Rated 4 out of 5 by from The description says it's minty apple flavor but it actually came today as the cherry bubblegum flavor
Date published: 2020-08-06
Rated 4 out of 5 by from Great Omega Fatty Acids Source Great product nutritionally if you are looking for something with high Omega content. Only drawback it the cherry flavor took my horse some getting used to and he is not normally picky at all. I am looking forward to trying this in the new minty apple flavor which I think will help.
Date published: 2020-07-29
Rated 4 out of 5 by from Amazing results We bought this product as a hopeful final answer to our COPD horses needs. I have bought every product under the sun to help them but nothing was working successfully. After using this product our seven Heaves sufferers could breathe, go back to work, and are competing successfully for the first time in years. The only con to this product is the lack of palatability. It took three weeks for the horses to eat a full two pump serving.
Date published: 2020-07-16
Rated 4 out of 5 by from Too early Too early to tell if it works for our OTTB with DJD or our pony with RAO, but they readily ate their mash with the added oil. I know others have mentioned their horse did not eat it, but neither of ours hesitated to eat their food when added to their alfalfa/Timothy mash with supplements.
Date published: 2020-04-22
Rated 3 out of 5 by from My mare that eats everything won’t eat it. My mare took one smell of this and turned away. She came back to her feed bowl and tried so hard to eat it. We poured it over crypto aero grain that she LOVES. She took a bite and shook her hood like she was trying to figure o spit it out. She couldn’t finish it. The bubble gum scent doesn’t work for her.
Date published: 2020-02-05
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