The most common version of liver cancer is Hepatocellular Carcinoma (HCC). Fung- Lung Chung has found a connection between green tea extract (Theaphenon E) and HCC. This connection has shown in mice that the risk of liver cancer is reduced. It is unknown whether that the connection is due to drinking green tea or taking pills that contain green tea extract. Dr. Chung suggests taking the green tea extract pill as a dietary supplement. However, you need to make sure you are taking the right green tea pill. There is very lax governmental regulation on it. Therefore, most pills may not give significant help. Chung and his colleagues have found out through tests on mice that the liver cancer biomarker g-OHPdG could be the connection to green tea extract and liver cancer. They are testing to see if this biomarker is a could predictor of liver cancer prognosis. They have also, tested the effects of tissue samples of humans with liver cancer. g-OHPdG causes mutations in the DNA and is well known as genetic mutation in those who have lung cancer from smoking. Theaphenon is one of the three antioxidants the group have tested in relation to g-OHPdG. This antioxidant was the most successful of the three. It lowered g-OHPdG the most of the three. In addition, it also prevented liver tumors from forming and lowered the total number and size of such tumors. An East Asian study, suggests that there is a 12% reduced risk in the disease if you drink green tea daily. However, this study was an observation-based study. As a result, there is no cause or effect available for this Asian study.  The correlation between Theaphenon E and HCC still has a lot of unknowns, but it is one step closer to figuring out a safe straightforward way to reduce the chances of getting HCC.
 Ryan, Benjamin. “Could Green Tea Help Prevent Liver Cancer?” Hep, 8 Feb. 2018, www.hepmag.com/article/green-tea-help-prevent-liver-cancer.