A new study in the
International Journal of Epidemiology. found that while there is no apparent connection between soy intake and breast cancer risk, dairy milk is connected with elevated incidents of breast cancer. The study followed women for almost 8 years, all of them cancer-free to start, asked them to fill out daily food logs and found that there is a clear connection between dairy intake and breast cancer.
The study looked at soy, dairy, and breast cancer over 7.9 years among 52,795 women in North America, and by the end of the study, there were 1,057 new breast cancer cases among the women, and a higher number of those cancers were among dairy milk drinkers.