Sylvia Ley, PhD, RD

Assistant Professor

Dr. Sylvia Ley



Fellowship, Harvard T.H. Chan School of Public Health 

PhD, University of Toronto 

BSc, The University of Western Ontario

Dr. Ley focuses on developing strategies to prevent and manage chronic diseases and investigating earlier life risk factors for diabetes and cardiovascular disease over the life-course. Her peer-reviewed publications have been cited over 8500 times, and her research has been funded by NIH, NSF, and CIHR. She serves as President of the Delta Omega Eta Chapter and Chair-Elect of Nutritional Epidemiology, American Society for Nutrition. She completed her doctoral study in maternal and infant nutrition and clinical epidemiology at University Toronto and postdoctoral training at Harvard T.H. Chan School of Public Health working with large-scale cohort studies using classical epidemiologic methods.

Recent Publications (**Graduate Students)

Yang J, Qian F, Chavarro JE, Ley SH, Tobias DK, Yeung E, Hinkle SN, Bao W, Li M, Liu A, Mills JL, Sun Q, Willett WC, Hu FB, Zhang C. Modifiable risk factors and long-term risk of type 2 diabetes among women with a history of gestational diabetes mellitus. BMJ. 2022; 378:e070312 PMID: 36130782 PMCID: PMC9490550

Ley SH, Romrell AM.** Healthy eating for healthy aging: What and when to eat as an older adult. Am J Clin Nutr. 2022; 116(2):293-294 PMID: 35678559 PMCID: PMC9348973

Mullen AJ,** O’Connor DL, Hanley AJ, Piedimonte G, Wallace M, Ley SH. Associations of metabolic and obstetric risk parameters with timing of lactogenesis II. Nutrients. 2022; 14(4): 876 PMID: 35215526 PMCID: PMC8879345

Yang J, Tobias DK, Li S, Bhupathiraju SN, Ley SH, Hinkle SN, Qian F, Chen Z, Zhu Y, Bao W, Chavarro JE, Hu FB, Zhang C. Habitual coffee consumption and subsequent risk of type 2 diabetes in women with a history of gestational diabetes - a prospective study of 888,09 person-years follow-up. Am J Clin Nutr. 2022; 116(6):1693-1703 PMID: 36373514 PMCID: PMC9761754

Martin MA, Keith M, Pace RM, Williams JE, Ley SH, Barbosa-Leiker C, Caffé B, Smith C, Kunkle A, Lackey KA, Navarrete AD, Pace CDW, Gogel AC, Eisenberg DTA, Fehrenkamp BD, McGuire MA, McGuire MK, Meehan CL, Brindle E. SARS-CoV-2 specific antibody trajectories in mothers and infants over two months following maternal infection. Front Immunol. 2022; 13:1015002 PMID: 36304449 PMCID: PMC9596287

Research Areas

  • Nutrition
  • Diabetes
  • Cardiovascular Disease
  • Maternal and Child Health
  • Life Course Epidemiology


View Dr. Ley's publications at her NCBI profile page.

View Dr. Ley's Google Scholar page



SPHL 6060 Epidemiology for Public Health