Boron-rich diets had protected against prostate cancer, according                  to a 2004 study by Yan Cui and colleagues at UCLA's Department                  of Epidemiology. Knowing that ...   raised levels of circulating testosterone                    and estradiol (two major sex hormones) in the body have been                    proposed to modify prostate cancer risk and   boron has been linked to raised levels of                    circulating testosterone and estradiol   ... researchers compared the boron intakes of 95 men with prostate                  cancer to those of 8,720 healthy controls. After controlling for                  other potential risk factors (age, race, education, smoking, body                  mass index, dietary caloric intake, and alcohol consumption) increased                  dietary boron intake correlated well with a decreased risk of                  prostate cancer. Those with the most boron in their food and drink                  had ...