Epigallocatechin-3-gallate (EGCG), a type of catechin found in green tea, has been shown to have significant anti-cancer properties. Research has demonstrated that EGCG can inhibit the growth and spread of cancer cells in a variety of cancers, including breast, prostate, colon, and lung cancer. EGCG works by inhibiting the activity of enzymes involved in the growth and spread of cancer cells, as well as promoting programmed cell death (apoptosis) of cancer cells. Additionally, EGCG has been shown to enhance the effectiveness of chemotherapy and radiation therapy, making it a promising adjunct therapy for individuals with cancer.