In addition to wild Alaskan salmon oil, we include Flax Seed Oil, which is rich in ALA (alpha linolenic acid — another Omega-3 fatty acid considered highly beneficial to horses), a tiny bit of Black Currant Oil to provide the fatty acid GLA (gamma linolenic acid), and lastly, in order to make our supplement very palatable to horses, we add organic Essential Peppermint Oil—which also helps support digestion!