It commented: “Japanese women historically have a low risk for breast cancer, but that risk has been rising dramatically, concurrent with a ‘ Westernization ’ of eating habits; that is, from a low - ​ fat to high - ​ fat diet. ”
अन्य अध्ययन आहार में चर्बी को कारण के तौर पर नहीं, परन्तु स्तन कैंसर के प्रवर्तक के तौर पर सम्बद्ध करते हैं ।