Green tea has been studied a lot the past few years when it comes to its possible action to prevent cancer. Green tea contains indeed a lot of anti-oxidants that can slow the development of polyps. We are still at the very beginning of our understanding of green tea effects on human body and especially on its ability to prevent cancer but the results are extremely promising.
In Asia, where the consumption of tea is the highest, we register the lowest level cancer among the population.
So what about breast cancer in particular?
Well here as well no absolute conclusion has been made on the topic to say that drinking green tea will prevent you from having breast cancer. But a large study in the Japanese Journal of Cancer Research showed benefits for women who were diagnosed with breast cancer. If they drank five cups or more per day prior to cancer diagnosis, they had the least chances for getting the disease again. The recurrence rate for stage I and II was 24.3 percent. This study also showed younger women to benefit more.
Another study has reached the same conclusion, you can have a look at it here if you wanna know more.