Natural antioxidants are primarily plant polyphenolic compounds. Antioxidants are non nutritive factors example flavonoid compounds. Some vitamins and minerals also posses antioxidants like beta carotene, Vitamin C, vitamin E, Zinc, Selenium, Copper, Iron and Manganese.

Antioxidants prevents from oxidative damage. Foods rich in antioxidants photochemical are garlic, oats, ginger, tea, oil, sweet potato, almonds, olive oil, green tea etc.