Soy and Breast Cancer
Fears about soy causing breast cancer originated from a 1998 rat study using massive phytoestrogen doses. Dr. John Lee’s 2001 book spread this worry to health-conscious women. American soy milk sales dropped 10% between 2000-2005 as a result. Current research tells a different story. A major 2016 analysis of 35,000 women showed moderate soy consumption actually reduces breast cancer risk by 10-15%. Cultural bias against “foreign” foods helped sustain this myth despite evidence.