Antioxidants What are Antioxidants? Antioxidants are food additives used to slow lipid oxidation and other deleterious reactions. As a result, they help preserve food quality and shelf life. There are two categories: Natural: found in cereals, fruits, vegetables and nuts. They range from  phytochemicals (ferulic acid, gallic acid, flavonoids, catechins, carotenoids) to [...]