Definition of omega-3 fatty acid in US English:

omega-3 fatty acid


  • An unsaturated fatty acid of a kind occurring chiefly in fish oils, with three double bonds at particular positions in the hydrocarbon chain.

    • ‘Omega-3 fatty acids benefit the heart of healthy people, people at high risk of cardiovascular disease and patients with cardiovascular disease.’
    • ‘Omega-3 with EHA and DPA is one nutrient that nearly everyone is dangerously deficient in.’
    • ‘Omega-3 fatty acids can be found in fish, such as salmon, tuna, and halibut, other marine life such as algae and krill, certain plants (including purslane), and nut oils.’
    • ‘There is strong scientific evidence from human trials that omega-3 fatty acids from fish or fish oil supplements (EPA + DHA) significantly reduce blood triglyceride levels.’
    • ‘Infant monkeys fed baby formula supplemented with omega-3 are stronger and more alert even at less than a week than monkeys given standard baby formula.’


omega-3 fatty acid