. 2020 May 31;6(5):e04107. doi: 10.1016/j.heliyon.2020.e04107

Table 1.

Types of antioxidants.

Endogenous Antioxidants	Exogenous Antioxidants
Enzymatic Catalase Superoxide dismutase Glutathione Glutamyl trans peptidase Non-Enzymatic Uric acid Ubiquinone Tocopherol Retinol Glutathione Melatonin Nuclear factor erythroid 2-related factor 2 (NRF2)	Mineral elements Selenium Zinc Manganese Copper Nutritional Carotenoids Vitamin C Vitamin E Phytochemicals Supplementations β-carotene, coenzyme Q10 Lipoic acid, Glutathione Phytoestrogens, Polyphenol