Some fatty acids are not essential; you do not need to have them in your diet because your body can make them. However, your body cannot form all fatty acids, this means that some fatty acids, like Omega-3 and Omega-6, are essential because your body cannot make them.
Antioxidants are specific substances that prevent or slow damage to the body’s cells caused by free radicals.
Vitamins A, C, E, beta-carotene, lycopene, lutein, selenium, manganese, etc. all have antioxidant properties.