I am Green tea. I am an unfermented type of tea that is made from Camellia sinensis leaves and buds that have not undergone the same withering and oxidation process which is used to make oolong teas and black teas. I originated in China, and since then my production and manufacture has spread to other countries in East Asia. Green tea is one of the best means of maintaining health and is effective against over 60 diseases. Variety and preparation are important.