Both fish-oil pills and krill-oil supplements supply the healthful omega-3 fatty acids DHA and EPA. But there are differences. Krill oil comes from small crustaceans, not fatty fish, and typically ...

Fish oil is an oil extracted from the tissues of fish such as mackerel, herring, sardines, salmon, and trout. Consumed as a dietary supplement, either in liquid form or capsules, it has a high ...