Orange can remove the internal harmful to the health of free radicals, inhibit the growth of tumor cells. All the fruit, navel orange contains antioxidants , including 60 kinds of flavonoids and 17 kinds carotene. Flavonoids substances have fight inflammation, strengthen blood vessels and inhibit blood coagulation effect. Carotenoids has the very strong antioxidant effect. These components to orange to many kinds of cancer have inhibition