Scientists have been striving to link diet to breast cancer risk for years. Finally a large epidemiological study in Europe has come up with a few foods to avoid. More than 350,000 women in 10 countries participated in the European Prospective Investigation into Cancer and Nutrition (EPIC) study, which lasted nearly a decade. Women who ate the most processed meat had a risk 10 percent above baseline. Premenopausal women who ate the most butter were 28 percent more likely to be diagnosed with breast cancer.
[American Journal of Clinical Nutrition, Sept., 2009]