In addition to antioxidant enzymes, many vitamins and minerals may also have antioxidant properties. These include vitamins C, E, A (beta-carotene) and nutrients such as lutein, lycopene, vitamin B2, coenzyme Q10, and cysteine (an amino acid). Herbs, such as bilberry, turmeric (curcumin), grape seed or pine bark extracts, and ginkgo can also provide powerful antioxidant protection for the body. Flax oil is said to contain a high amount of lignans, protein, fats, vitamins, and minerals. Lignans especially is that substance in flax oil that has antioxidant properties. The Benefits of Flax Oil Lignans A natural plant chemical, lignans are antioxidant molecules with anti-cancer, anti-viral, and anti-bacterial properties. According to their findings, the overall best sources of antioxidant fruits under the berry category are dog rose, sour cherry, blackberry, strawberry, raspberry, crowberry, blueberry, and black currant. Under the antioxidant fruits category are pomegranates, grape, orange, plum, pineapple, lemon, dates, kiwi, Clementine, and grapefruit. The group of researchers who conducted the study say that a compound extracted from the seeds of red grapes called Activin (tm) is that substance with powerful antioxidant red grapes properties. Because of its apparent powerful benefits, Activin was dubbed as the "super" antioxidant red grapes. In this article, we will attempt to answer all your questions about antioxidant and free radicals, plus help you understand why it is so important to include rich sources of antioxidant nutrients in your daily diet. A Little Background on Chemical Bonding When talking about antioxidant and free radicals, we can't help but touch a little on biochemistry. The two most important oxygen-centered free radicals are superoxide and hydroxyl radical. They are derived from molecular oxygen under reducing conditions, such as when a person breathes. However, because of their high reactivity, free radicals often participate in unwanted side reactions resulting in cell damage.