Scientists also discovered that EGCG from green tea can help to prevent metastasis, or the movement and spreading of cancer cells from one organ or tissue to the other by bloodstream or lymph. Cancer cells secrete special enzymes in order to enter and colonize tissues. Research shows that EGCG stops the secretion of these special enzymes.
A case study that was done in China, reports that those women who drank green tea regularly had a 50% lower risk of developing esophageal cancer. Men showed less risk as well, but not as significant as women.
Researchers from Sweden reported that green tea blocked the development of new blood vessels in the lungs. By blocking the development of new blood vessels in the lungs, tumors are less likely to grow and metastasize. Scientists believe that EGCG plays a significant rule in blocking the development of tumors. Similar results were achieved in breast cancer, colon cancer and melanoma studies. It is believed that drinking green tea for an extended period of time will help to prevent and might cure cancer naturally.
The antioxidants found in green tea--called catechins--may selectively inhibit the growth of cancer. In laboratory studies using animals, catechins scavenged oxidants before cell damage occurred, reduced the number and size of tumors, and inhibited the growth of cancer cells. National Cancer Institute researchers are investigating the therapeutic and preventive use of tea catechins against a variety of cancers.
