綠茶多酚 epicatechin-3-gallate (ECG) 可能可以減少女性胃癌，最多可以達 75%

Reference:

Sasazuki S, Inoue M, Miura T, Iwasaki M, Tsugane S; for the Japan Public Health Center-based Prospective Study Group. Plasma Tea Polyphenols and Gastric Cancer Risk: A Case-Control Study Nested in a Large Population-Based Prospective Study in Japan. Cancer Epidemiol Biomarkers Prev. 2008 Feb;17(2):343-351.