However, it is likely that all-. natural energy drinks may contain as. much caffeine as regular energy drinks, albeit from natural sources. Therefore, natural energy drinks could differentiate. by listing the amount of caffeine on. packaging, if the product has less caffeine.
Description. Oi Ocha is Japan's #1 green tea brand and means Tea, please!. Unsweetened. No calories. With more than 100% RDA of Vitamin C.  1  All natural. 2  Unsweetened.
Oolong tea is partially oxidized green tea and contains about 20-30 percent of the GTP concentration of green tea. Green and black teas may also be mixed to obtain both the flavor of black tea and the health benefits of green tea.