Omega-6 fatty acids are a type of polyunsaturated fat essential for human health. They play a crucial role in brain function, growth, and development. Common sources include vegetable oils, nuts, and seeds, which provide the body with energy and support various bodily functions. These fatty acids are important for maintaining healthy skin and regulating metabolism. However, it's essential to balance omega-6 intake with omega-3 fatty acids, as an excess of omega-6 can lead to inflammation and other health issues. Foods rich in omega-3 include fish, flaxseeds, and walnuts.