Mark A. Guinter, PhD, MPH

Post-doctoral fellow


Mark A. Guinter examines the influence of modifiable lifestyle factors on the risk of cancer incidence and mortality.


Guinter’s research aims to identify the lifestyle and other factors related to colorectal cancer risk and survival, with the goal of improving cancer prevention strategies and guidelines. To fill a knowledge gap on dietary recommendations for colorectal cancer survivors, Guinter studied whether following the American Cancer Society’s dietary prevention guidelines after diagnosis was associated with improved prognosis. In his 2018 publication in the Journal of Clinical Oncology, Guinter demonstrated that following the prevention guidelines after diagnosis was associated with a 65% lower risk of dying from colorectal cancer.

Using a combination of survey and biomarker data, Guinter investigates the biologic mechanisms that mediate the relationships of diet quality and other lifestyle factors with cancer risk. His latest research is exploring the epigenetic profiles of colorectal tumors, with the goal of understanding how an unhealthy lifestyle may cause or accelerate colorectal carcinogenesis.


  • PhD, Epidemiology, University of South Carolina, 2017
  • MPH, Epidemiology, University of Louisville, 2014


For a full list of Guinter’s publications, visit his Google Scholar page.