Shrimp DOES have omega-3.
Shrimp is a good source of omega-3 fatty acids. Additional sources of omega-3 fatty acids from your seafood aisle include clams, tuna, salmon, sardines, halibut, trout, herring, cod, and catfish. Not a seafood lover? You can still get omega-3 naturally from spinach, walnuts, and flaxseed and canola oil.
Mercury versus Omega-3
An interesting study conducted by researchers from Coastal Carolina University's Department of Marine Science set out to determine the appropriate amounts of fish and shellfish to safely consume based on omega-3 content in relation to mercury content. They determined that the best species to consume that had the highest omega-3 concentrations with the lowest mercury levels included salmon, trout, and shrimp. In contrast, the highest levels of mercury with the highest levels of omega-3 included tuna, shark, sea bass, swordfish, and halibut.