Antioxidant

A generic term for substances that inhibit the generation and function of reactive oxygen species or remove reactive oxygen species themselves. Antioxidants include antioxidant enzymes synthesized in the body, such as superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT), and antioxidants taken in from food, such as polyphenols, carotenoids, and vitamins.