Tea's principal active components are polyphenols. Catechins, which include epigallocatechin-3-gallate (EGCG), epigallocatechin, epicatechin-3-gallate, epicatechin, gallocatechin, and gallocatechin gallate, are the principal polyphenolic components in green tea. Tea polyphenols have been found to protect against cancer, diabetes, and cardiovascular disease in cell culture and animal trials. Two...