The main ingredient of green tea is tea polyphenols  Recently, a large number of animal experiments have found that tea polyphenols can inhibit tumor cell proliferation and promote tumor cell death  However, through the study of a large number of people, some experts did not find that the more tea they drank, the lower the incidence of cancer
Only in a large number of people, it is found that the more tea drinking, the lower the incidence of cancer, can it be concluded that regular tea drinking can prevent cancer
 Accordingly, they do not think that drinking tea regularly can prevent cancer