Only a few fish species compare or exceed the Omega 3 content found in sardines - examples pink salmon, chinook salmon, herring, and Hoki, a cold deep water fish from New Zealand. For this very reason, sardines are the preferred food on the palates of many large marine animals such as sharks, dolphins, seals, whales and discerning seabirds, including gannets and penguins. Since Omega 3 is food for large mammals, they are also good for your brain, joints and libido, I should suggest to the Chinese a gourmet of sardine fins soup instead of shark fin soup. But then....we first need to reposition the price of sardines!