Many previous laboratory researches have demonstrated the inhibitory power of components of black and green teas not only against cancer but also against tumerogenesis in lung, colon and skin.

Green tea is made from the a plant named Camellia Sinensis...as is black tea. The only difference is that green tea is left unfermented, which means that the high antioxidant actions remain fully intact.

Regarding tea daily consumption there are serious concerns related to its caffeine. So, drinking how much is too much?

Experts say total fluid intake in adults might be about 2.5 liters, of which tea can contribute six to ten cups, that means 0.7 to 1.4 liters.

The question has for long baffled tea lovers but experts say six to 10 cups per day can help in lowering the risk of a number of chronic diseases, claims a book.

Six to ten cups per day may be a beneficial dietary habit to help in reducing the risk of a number of chronic diseases. Green and/or black tea daily consumption could be a part of a health promoting nutritional diet low in total fat and salt. Besides regular cups of tea, this healthy diet must contain adequate vegetables and fruits, bran cereal insoluble fibers as well as sources of soluble fibers.