A new study failed to link plastic chemical compound phthalates (common in food packaging, personal care and home care products) to breast cancer in older women. Of course, as the researchers themselves have acknowledged, the most critical time for breast cancer development is earlier in women’s lives. Therefore studies such as this one that looked at women in their 50s and 60s may not be identifying the most important exposure period for how phthalates and other chemicals may impact breast cancer risk.
Journal Reference: Katherine W Reeves, Mary Díaz Santana, JoAnn E Manson, Susan E Hankinson, R Thomas Zoeller, Carol Bigelow, Susan R Sturgeon, Donna Spiegelman, Lesley Tinker, Juhua Luo, Bertha Chen, Jaymie Meliker, Matthew R Bonner, Michele L Cote, Ting-Yuan David Cheng, Antonia M Calafat. Urinary Phthalate Biomarker Concentrations and Postmenopausal Breast Cancer Risk. JNCI: Journal of the National Cancer Institute, 2019; DOI: 10.1093/jnci/djz002