Marjorie McCullough, ScD

Senior Scientific Director, Epidemiology Research


An expert in nutritional epidemiology, Marjorie (Marji) McCullough oversees the assessment and analysis of dietary data in the Cancer Prevention Studies (CPS). She participates in international consortia related to nutrition and cancer. 


McCullough’s research focuses on the role of vitamin D, dietary patterns, and adherence to dietary and lifestyle guidelines in reducing cancer incidence and improving survival. Using biomarker and nutrient data from the Cancer Prevention Studies (CPS), McCullough also investigates the interplay of diet, metabolism, and lifestyle and behavioral choices on overall health. Her latest areas of research include studies on metabolomics, the built environment, and identifying novel biomarkers of dietary intake and cancer risk.

McCullough’s research and expertise have contributed significantly to the ACS Nutrition and Physical Activity Guidelines for Cancer Prevention. In a 2011 publication in Cancer Epidemiology Biomarkers and Prevention, McCullough showed that adherence to the guidelines was associated with a lower the risk of death from cancer. McCullough works with ACS Cancer Action Network (ACS-CAN), the Society’s advocacy organization, on ACS and ACS-CAN positions regarding nutrition policies that impact cancer prevention and control. 


  • ScD, Nutritional Epidemiology, Harvard University, 1999
  • MS, Dietetics, Massachusetts General Hospital Institute of Health Professions, 1986


For a full list of McCullough’s publications, visit her Google Scholar page.