As you look at your horses’ diet, it is important to remember that horses need a balance of both omega-3 and -6 fatty acids for optimal health and performance. One isn’t necessarily better than the other; they simply have different roles in the body and must be in balance with each other for optimal health.

As herbivores and nomadic grazers, horses are naturally adapted to a diet rich in omega-3 fatty acids (ALA) compared to omega-6 fatty acids (LA). The little bit of fat found in forages, particularly fresh pasture, is naturally high in ALA whereas oils from grains and seeds tend to be higher in LA.

Dietary Sources of Polyunsaturated Fatty Acids

Omega-6 Fatty Acids Omega-3 Fatty Acids
Corn oil (LA) Flaxseed (linseed) oil (ALA)
Safflower oil (LA) Fish oil (EPA, DHA)
Rice bran oil (LA) Soybean oil (ALA)
Sunflower oil (LA) Canola oil (ALA)
Borage (starflower) oil (LA) Mustard oil (ALA)
Cottonseed oil (LA)  
Grapeseed oil (LA)  
Peanut oil (LA)  
Primrose oil (LA)  
Sesame oil (LA)  
Soybean oil (LA) Fish oil (EPA, DHA)

Diets that include supplemental fat along with grain concentrates may have a skewed ratio of omega-3 to omega-6 fatty acids, and might not be as beneficial as a diet rich in omega-3 fatty acids. Dietary supplementation with omega-3 fatty acids has been shown to provide numerous benefits to horses, pets, and humans including:

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