Diet Changes That Might Cut Breast Cancer Risk - By now, we all know that Angelina Jolie quietly underwent a preventive double mastectomy after learning she carried a genetic mutation that sharply increased her risk of breast cancer. Women with a faulty BRCA1 gene typically have a 45 to 90 percent risk of getting breast cancer during their life, compared to a 12 percent risk for the average woman. "My chances of developing breast cancer have ... (May 15, 2013)