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.
Called âoocha,â the new incarnation of oolong tea is a play on matcha, the wildly popular whole green tea leaves that are dried and powdered (unlike regular tea leaves, which are steeped). Matcha is one of the hottest trends in the tea and hot drink categories, and for good reason.