Emily Oken

Dr. Oken is a Professor in the Department of Population Medicine.  Her research is focused on the health effects of nutrition and environmental toxicants on health and disease, with a particular focus on pregnancy and early childhood. She has studied the balance of risk and benefit from maternal fish consumption during pregnancy on child development, long term health effects of breastfeeding for both mother and child, and determinants and sequelae of excess gestational weight gain. She has also performed a number of studies on the influence of modifiable behaviors during pregnancy, such as smoking, physical activity, and diet, on risk for obesity among both mothers and their children.  Within the Department of Population Medicine Dr. Oken is Vice Chair, Director of Faculty Development and site director for the Harvard General Medicine fellowship.  At Harvard Medical School, she is Associate Director in the Oliver Wendell Holmes Society and Director of the Clinical Epidemiology and Population Health longitudinal curriculum. Dr. Oken completed residency training in both internal medicine and pediatrics.



Professor, Harvard Medical School

Professor, Department of Nutrition, Harvard School of Public Health

Associate Director and Advisor, Oliver Wendell Holmes Society, Harvard Medical School

Staff Assistant


Changes in parental smoking during pregnancy and risks of adverse birth outcomes and childhood overweight in Europe and North America: An individual participant data meta-analysis of 229,000 singleton births. (Pubmed Abstract)

Professor and Vice-Chair

Work Phone
Mailing Address
Harvard Medical School
Department of Population Medicine
401 Park Drive, Suite 401
Boston, MA 02215