A natural source of antioxidants. Individually wrapped for freshness. All natural. From the fields of five continents. Kang, the Chinese character on this package is the ancient symbol for good health. In the Oriental tradition, it is believed to be conferred by right living and by the use of special herbs. Scientific studies of green tea have shown that, on a dry weight basis, the antioxidant activity of tea is among the highest of any vegetable. Additionally, tests have shown that 69%-85% of the antioxidant activity of tea enters the liquid tea within five minutes of brewing. Antioxidants are compounds that help eliminate free radicals, which are molecules that damage cells. Contains no sugar, artificial colors, flavors or preservatives. Caffeine meter (source data on file): Average milligrams of caffeine per 8 oz cup or equivalent: coffee 100, black tea/chai 50, green tea 30, decaf. tea 4, red tea 0. Kosher.