Charles B. Stephensen, PhD

Research Leader
USDA

Charles B. Stephensen, Ph.D., is Research Leader of the Immunity and Disease Prevention Research Unit at the USDA Western Human Nutrition Research Center in Davis, Ca and an Adjunct Professor of Nutrition at the University of California, Davis. He has a longstanding interest in research on the effects of nutrition on immune function, with a particular focus on vitamin A, vitamin D, and the intestinal microbiome. Dr. Stephensen obtained and M.S. in Human Nutrition at Cornell University in Ithaca, New York, a Ph.D. in Immunology and Infectious Diseases at the Johns Hopkins University School of Public Health in Baltimore, Maryland. He trained as a postdoctoral fellow in Virology at the Uniformed Services University of the Health Sciences in Bethesda, Maryland. Dr. Stephensen was an Associate Professor in the Department of International Health, School of Public Health at the University of Alabama at Birmingham before moving to the USDA.

Poster(s):

• (PO08-51-22) Dietary Restraint Constructs Are Associated With Diet Quality and Nutrient Intake

• (PO14-19-22) Diversity of Monosaccharide Composition of Diets Consumed by Healthy U.S. Adults Is Highly Variable and Positively Associated With the Healthy Eating Index

• (PO23-02-22) Low Intake of Dietary Fiber Is Associated With Gastrointestinal Inflammation in Healthy U.S. Adults

• (PO24-03-22) Carbohydrate Active Enzyme Profiles of Gut Microbiomes From Low and Adequate Fiber Consumers in a Healthy U.S. Cohort

• (PO27-04-22) TMAO Response to a High-Fat High-Sugar Meal Challenge in Generally Healthy United States Adults