ω-3, or omega-3 fatty acids, are essential fats that the body cannot produce on its own. They are important for heart health, brain function, and reducing inflammation. Common sources of omega-3 include fatty fish like salmon, mackerel, and sardines, as well as plant-based sources like flaxseeds and walnuts. There are three main types of omega-3 fatty acids: ALA (alpha-linolenic acid), EPA (eicosapentaenoic acid), and DHA (docosahexaenoic acid). ALA is primarily found in plant sources, while EPA and DHA are mainly found in marine sources. Including omega-3 in your diet can contribute to overall health and well-being.