Omega-3 fatty acids are healthy fats that are part of the family of polyunsaturated essential fatty acids. There are two kinds of omega-3 fatty acids:
- Marine sources – EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid)
- Plant sources – ALA (alpha-linolenic acid)
Omega-3 fatty acids from marine sources (DHA and EPA) are most abundant in fish that are naturally rich in oil (sardines, anchovies, mackerel, salmon, herring, tuna, bonito) and seafood.
Omega-3 fatty acids from plant sources (ALA) are obtained from flax seed, soybeans, certain oils (canola, flaxseed, nuts, walnut, soybean) and nuts (walnuts and almonds), to name just a few sources.