Epigallocatechin Gallate (EGCG), protects against digestive and respiratory in vitro. Green tea is beneficial in reducing the risk of cardiovascular disease as it exerts antioxidant activity, lowers cholesterol and reduces platelet aggregation (stickiness). Green tea extract is very good for the arteries and heart. Additional studies have demonstrated enhanced liver function and immune system function secondary to these polyphenols. EGCG helps block the cancer-promoting actions of carcinogens, ultraviolet light, and metastasis from an original site in the skin, stomach, small intestine, liver or lung. Higher quantities (0.5% to 1% of diet) were protective against high total and LDL-cholesterol levels on a cholesterol promoting diet in rats. EGCG also reduces platelet aggregation about as much as aspirin or Ginkgo Biloba extract. Clincial Science:http://www.thorne.com/greentea.html