While there is no one single food or diet that can prevent or cause breast cancer, diet is an area in which individual choices can make a real difference. Breast cancer is a complex disease with many contributing factors. Some of these factors, such as age, family history, genetics, and gender, cannot be controlled.
However, there are factors that individuals can control, which include smoking, not exercising, being overweight, and their diet. Some researchers maintain that diet could be responsible for 30 to 40 percent of all cancers.