#$%^&*AU2016216624A120160901.pdf#####ABSTRACT Some aspects of the invention provide for essential fatty acids which are substituted in specific positions to slow down oxidative damage by Reactive Oxygen Species (ROS), and to 5 suppress the rate of consequent formation of reactive products, for the purpose of preventing or reducing the damage associated with oxidative stress associated diseases such as neurological diseases and age-related macular degeneration (AMD).