For a long time, riders fed corn oil for a hearty serving of fat. Fat will make your horse shiny, but it is so important to choose the right kind of fat. Omega 3 fatty acids are anti-inflammatory, while Omega 6 or pro-inflammatory. Corn oil is very high in Omega 6 fatty acids, which can put the body in a chronic state of inflammation, and create a negative impact on cellular health throughout the body.