The female hormone oestrogen has been shown for the first time to potentially protect against colon cancer. The new research also found that soy protein may help reduce the number and size of tumours that do occur.Soy protein has already been shown to have a protective effect on hormone-related cancers including breast cancer and prostate cancer. But if the link between oestrogen and colon cancer is confirmed, the study could further expand the benefits of the natural phytoestrogen.
