Professional Researchers, Lecturers and Adjunct Faculty

John W. Newman, Ph.D.

  • Research Chemist, USDA ARS WHNRC
  • Associate Adjunct Professor
Dr. Newman's research group is developing and applying targeted and untargeted metabolomics tools to investigate metabolic responses to diet and their implications in the context of obesity and its associated co-morbidities. Active research areas include: 1) Investigating the functional implications of lipoprotein particle metabolomics structure on vascular and adipose physiology; 2) Investigating cross-talk between mediators of energy metabolism, inflammation, tissue growth and satiety; 3) Mapping the natural variance in metabolic responses to dietary challenges; 4) Investigating the impact of diet quality and weight maintenance/loss on metabolic indices of health.
210 WHNRC

Daniela Hampel, Ph.D.

  • Professional Researcher
Dr. Hampel’s research is focused on method development for phenotyping breast milk and plasma samples and assessment of micronutrient deficiencies in mostly developing countries as well as evaluation of biomarkers to assess adequate micronutrient intake for mothers, breast milk status and infants 0 - 6 months.
264 WHNRC

Charles B. Stephensen, Ph.D.

  • Director, USDA ARS WHNRC
  • Adjunct Professor
Dr. Stephensen is the Director of the USDA Western Human Research Center (WHNRC). His research interests focus on the relation between nutritional status and immune function, focusing on vitamin A, vitamin D and omega-3 fatty acids. The effect of diet on the gut microbiome as a mediator of the impact of diet on immunity is also a current focus.
204 WHNRC