Dietary sources high in omega-3 fatty acids include fish (especially fatty varieties like salmon and mackerel), chia seeds, flaxseeds, and walnuts. Omega-3s are essential for maintaining heart health, reducing inflammation, and supporting brain function. Incorporating these foods into the diet can help achieve adequate omega-3 intake. Additionally, plant-based sources, such as algae supplements, provide a suitable alternative for those following vegetarian or vegan diets, ensuring they receive these vital nutrients for optimal health benefits.