Jill Reedy, PhD, MPH, RDN, is chief of the Health Behaviors Research Branch (HBRB) of the Behavioral Research Program (BRP) in NCI's Division of Cancer Control and Population Sciences (DCCPS). Previously, she was the branch chief in the Risk Factor Assessment Branch of the Epidemiology and Genomics Research Program (2019-2026) and a program director in DCCPS from 2007-2019.
As branch chief, Dr. Reedy oversees research portfolio and initiatives that focus on diet, physical activity, and sleep methods; digital health technologies; and integration of modifiable risk factors, including obesity policy research. Her scientific interests include the assessment of dietary patterns across the life course, dietary surveillance, obesity policy, sustainability, and measures of the food environment.
Dr. Reedy serves on several NIH collaborations and working groups with other federal partners, including the Interagency Committee on Human Nutrition Research and the Data Analysis Team for the Dietary Guidelines Advisory Committee. She is the program officer for the Diet Assessment Center for the Nutrition for Precision Health, powered by All of Us Research Program, which focuses on improving diet assessment methodologies through validation, evaluation, and modeling efforts. Dr. Reedy partners with colleagues at NCI, the United States Department of Agriculture (USDA), the National Collaborative on Childhood Obesity Research (NCCOR), World Cancer Research Fund (WCRF), and the American Institute for Cancer Research (ACIR), to develop resources for researchers including the Dietary Assessment Primer; the NCCOR Measures Registry Resource Suite; the NCCOR Catalogue of Surveillance Systems; the WCRF/AICR Score; and the Healthy Eating Index.
Prior to joining EGRP and then BRP, Dr. Reedy was a program director and nutritionist in DCCPS’s Applied Research Program (now the Healthcare Delivery Research Program). She first joined NCI as a Cancer Prevention Fellowship Program fellow. Dr. Reedy is a registered dietitian nutritionist and previously worked as a regional manager at the Dairy Council of California, a consultant with the California Nutrition Network, and a pediatric dietitian.
Scientific Interests
- Dietary patterns, guidance, and surveillance
- Assessment of modifiable risk factors
- Food environment and food/nutrition insecurity
- Obesity and policy research
- Time-sensitive opportunities for health research
Selected Publications and Presentations
- Shams-White MM, Faust EJ, Zimmer M, et al. Diet, Physical Activity, and Sleep Assessment: A Portfolio Scoping Review of Measures in NIH-Funded Epidemiologic Studies. AJPM Focus. 2025;5(1):100454. Published 2025 Sep 30. doi:10.1016/j.focus.2025.100454
- O'Connor SG, O'Connor LE, Higgins KA, et al. Conceptualization and Assessment of 24-H Timing of Eating and Energy Intake: A Methodological Systematic Review of the Chronic Disease Literature. Adv Nutr. 2024;15(3):100178. doi:10.1016/j.advnut.2024.100178
- Shams-White MM, Pannucci TE, Lerman JL, et al. Healthy Eating Index-2020: Review and Update Process to Reflect the Dietary Guidelines for Americans,2020-2025. J Acad Nutr Diet. 2023;123(9):1280-1288. doi:10.1016/j.jand.2023.05.015
- Reedy J, Krebs-Smith SM, Hammond RA, Hennessy E. Advancing the Science of Dietary Patterns Research to Leverage a Complex Systems Approach. J Acad Nutr Diet. 2017;117(7):1019-1022. doi:10.1016/j.jand.2017.03.008
- Miller PE, Reedy J, Kirkpatrick SI, Krebs-Smith SM. The United States food supply is not consistent with dietary guidance: evidence from an evaluation using the Healthy Eating Index-2010. J Acad Nutr Diet. 2015;115(1):95-100. doi:10.1016/j.jand.2014.08.030