Green tea has become the raw material for extracts used in various beverages, dietary supplements, and cosmetic items. It is made from the leaves from Camellia sinensis. Many claims have been made for the beneficial health effects of green tea consumption, but they have generally not been borne out by scientific investigation. Excessive consumption is associated with some harmful health effects but moderate, regular consumption is safe.
It is said that green tea helps reduce the chances of having stroke, lowering the fasting blood sugar, lowering the blood concentration of total cholesterol. Also might help in loosing some weight.
Regular consumption of green tea is safe, but there are reports of liver toxicity after consuming high doses of green tea extract dietary supplements.