Horses are often fed diets composed entirely of grain mixes and hay. Such diets are rich in omega-6 fatty acids but extremely low in omega-3 fatty acids. If vegetable oil is added to the ration, it further skews the ratio, with omega-6 fatty acids being overrepresented. To help counteract this imbalance, horses should be supplemented with omega-3 fatty acids, the richest sources of which are fish oils.

Kentucky Equine Research developed EO-3™, a potent marine-derived oil that is rich in omega-3 fatty acids. EO-3 is a palatable oil that is top-dressed onto the feed. EO-3 contains the omega-3 fatty acids DHA and EPA. KER has shown EO-3 to be highly palatable when compared to other marine-derived oils.

EO-3 is intended to be fed to horses of all classes and working levels to improve the critical omega-3:omega-6 ratio in their diets.