Motoki Iwasaki, from the National Cancer Center in Tokyo, Japan, and colleagues analyzed data from the Japan Public Health Center-based Prospective Study. They looked at nearly 54,000 women who were questioned about their daily green tea intake. About 12% of women drank less than one cup of green tea per week, and 27% drank five or more cups every day. During the study period, there were 581 new cases of breast cancer diagnosed.(Read entire article)
Green tea does not protect against breast cancer. A study of data from approximately 54,000 women, published in BioMed Central's open access journal Breast Cancer Research, found no association between drinking green tea and breast cancer risk.
Motoki Iwasaki, from the National Cancer Center, Tokyo, worked with a team of researchers to carry out the study. He said, "Although in vitro and animal-based studies have suggested that green tea may have beneficial protective effects against breast cancer, results from human studies have been inconclusive. (Read entire article)