To the editor–The recent press, both popular and scientific, has given wide coverage of the beneficial properties of green tea, most commonly used in Asian countries. Consumption has been associated with prevention of cancer development and metastasis1. The main flavonol of green tea, epigallocatechin-3-gallate (EGCG), inhibits urokinase2, one of the hydrolases implicated in tumor invasion. Moreover, green tea consumption by mice significantly limits angiogenesis3, crucial for the growth of all solid tumors.