Omega-3 fatty acids play a crucial role in a healthy diet due to their numerous health benefits. These essential fats, found in sources like fatty fish, flaxseeds, and walnuts, contribute to heart health by helping to reduce triglyceride levels and inflammation. They also support brain function, potentially lowering the risk of cognitive decline and improving mood. Moreover, omega-3s are involved in the body's inflammatory response, promoting better overall health. Regular consumption of omega-3 fatty acids is linked to a decreased risk of chronic diseases, making them an important dietary component.