Ovarian cancer. In a clinical study of ovarian cancer patients in China, researchers found that women who at least a cup drank green tea per day lived longer with the disease than those who drank no green tea. In fact, those who drank the most tea, lived the longest. However, other studies found no positive effect. Colorectal cancer. Clinical studies on the effects of green tea on rectal carcinomas have given different results.
Some studies showed a decreased cancer risk in people drink green tea, while other studies to an increased risk. In a study were women, the 5 or more cups Green Tea per day drank, a lower colon cancer risk compared to non tea drinkers. However showed no protective effect for men. Other studies have shown that regular drinking tea, the risk of colon cancer in women can be reduced. More research is needed, so that green tea to the colon cancer can recommend prevention scientists.
Esophageal cancer. Studies in laboratory animals have found that green tea contains polyphenols inhibit the growth of esophageal cancer. However, studies in humans have provided conflicting results. For example, a large-scale clinical trial found that green tea offers protection against the development of esophageal cancer, especially in women. Another clinical study revealed the opposite and claimed that the consumption of green tea represents an increased risk for esophageal cancer. In fact should man the tea hot drink, because the tea is stronger and ever hotter, the risk of the formation is the greater of Esophageal cancer. Given these conflicting results, more research is necessary before scientists can recommend green tea to prevent esophageal cancer. Further clinical studies are underway to see whether green tea reduces the risk of the various types of cancer. Diabetes traditionally green tea has been drunk in order to control blood sugar levels. Studies in animals indicate that green tea may help prevent type 1 diabetes development and progression if you already have diabetes type 1 is slowing down.