Medically reviewed by Melissa Nieves, LNDOmega-3, omega-6, and omega-9 are three types of fatty acids. Each offers health benefits, but you need omega-3 fatty acids the most.Keeping your intake of ...

Fat is central to a healthy diet, especially Omega-3, Omega-6 and Omega-9. The numbers in the names of Omega-3, 6 and 9 refer to how the fatty acid chains are composed at the molecular level.