In this webinar, Dr. Playdon explores the ways in which identifying biomarkers of dietary patterns and specific dietary exposures may provide tools to validate diet quality measurement, mitigate errors related to self-reported diet, and identify mechanistic mediators. She discusses two analyses of data from prospective studies: one examined whether there is an association between four specific diet quality indices and baseline fasting serum metabolites; the other examined the association between pre-diagnostically-measured, diet-related metabolites to invasive breast cancer in post-menopausal women. To learn more about the NIH Metabolomics Interest Group, visit https://metabolomics-sig.nih.gov