Enteric-Coated. No Fishy Aftertaste. 30 mg EPA/DHA. The True Strength of Fish Oils: Fish Oils contain long-chain fatty acids including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). DHA and EPA are omega-3 fatty acids with important roles in numerous metabolic functions. They are found in foods like salmon and supplements such as the ON Fish Oil Softgels you’re holding in your hand. Our Fish Oil Softgels are enteric-coated, which means that you get the benefits of fish oil without the fishy aftertaste that you might encounter without this special coating.