Green Tea (EGCG)
Green Tea has anti-cancer properties.
Green Tea contains Epigallocatechin Gallate (EGCG))
Green Tea enhances cancer treatment
This study concluded: The use of EGCG could enhance the effect of conventional cancer therapies through additive or synergistic effects as well as through amelioration of deleterious side effects.
Green Tea inhibits VEGF
VEGF (vascular endothelial growth factor) is the main proteins required for the development of new blood vessels to feed tumors. Green Tea inhibits VEGF, according to this study
Matcha Green Tea is better than other green teas
This study says:
Catechins in green tea are known to have many beneficial health properties. Recently, it has been suggested that matcha has greater potential health benefits than other green teas. Using a mg catechin/g of dry leaf comparison, results indicate that the concentration of epigallocatechin gallate (EGCG) available from drinking matcha is 137 times greater than the amount of EGCG available from China Green Tips green tea, and at least three times higher than the largest literature value for other green teas. These results suggest that drinking matcha will result in dramatically greater intake of EGCG.
Green Tea has multiple anti-cancer properties
This 2022 study says: EGCG interacts with various recognized cellular targets and inhibits cancer cell proliferation by inducing apoptosis and cell cycle arrest. In addition, scientific evidence has illustrated the promising role of EGCG in inhibiting tumor cell metastasis and angiogenesis. It has also been found that EGCG may reverse drug resistance of cancer cells and could be a promising candidate for synergism studies…A major challenge with EGCG is its low bioavailability which is being targeted for improvement by encapsulating EGCG in nano-sized vehicles for further delivery.
Green Tea in higher doses may interact with some drugs
This is from an article in The ASCO Post:
Although a dose of 200 mg of EGCG seems to be safe, higher doses may interact with some prescription drugs and may elevate liver enzyme levels. It is also important to distinguish food from concentrated supplements because the dosage varies considerably, which in turn can either confer benefit or cause harmful effects.
Page updated February 2026