Green tea is something that could help somebody in the fight against cancer.
Several population based clinical studies have shown that green tea helps to protect against cancer. Early clinical studies suggest that the polyphenols in tea, especially green tea, may play an important role in the prevention of cancer. Researchers also believe that polyphenols help kill cancerous cells and stop them from growing.
In a clinical studies done with ovarian cancer patients in china, researchers found that women who drank at least one cup of green tea per day lived longer with the disease than those who didn't drink green tea. Only a few clinical studies have examined the relationship between bladder cancer and drinking tea. Researchers found that women who drank green tea are less likely to develop bladder cancer.
Clinical studies in animals and test tubes suggest that polyphenols in green tea inhibit the growth of breast cancer cells.in one study of 472 women with various stages of breast cancer, researchers found that women who drank the most green tea had the least spread of cancer. they also found that women with early stages of the disease who drank at least 5 cups of tea every day before being diagnosed with cancer were less likely to have the cancer come back after they finished treatment. However, women with late stages of breast cancer had little or no effect from drinking green tea.
The main polyphenol in green tea is epigallocatechin gallate. Scientific studies suggest that it has anti-inflammatory and anti-cancer properties that may help prevent the development and growth of skin tumors.
One large-scale clinical study compared green tea drinkers with non-drinkers are found that those who drank the most tea were less likely to develop pancreatic cancer, ovarian cancer, colorectal cancer, esophageal cancer, lung cancer, prostate cancer, stomach cancer particularly in women who were 50% less likely to develop the disease.
Other studies have shown a lack of preventative effects of tea on cancer. In 2005. FDA stated that, "there is no credible evidence to support qualified health claims for green tea consumption and reduced risk of cancers."