Fatty fish such as salmon, sardines, mackerel, anchovies, and herring are among the most nutrient-dense whole foods available, prized largely for their rich concentration of omega-3 fatty acids, particularly EPA and DHA. Research suggests that regular consumption of these fish is associated with reduced markers of systemic inflammation, improved cardiovascular health, and support for cognitive function across the lifespan. Studies indicate that omega-3s from fatty fish may play a meaningful role in mood regulation, with some evidence linking higher intake to lower rates of depression, while DHA in particular is recognized for its contributions to eye health and fetal brain development during pregnancy. These fish also provide high-quality protein, vitamin D, and selenium, making them a well-rounded addition to a varied diet.
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