Current Nutrition Fellows

Nutrition FellowPhoto

Meghan Ruebel, PhD, Lead Fellow 2021-22*

Postdoctoral Fellowship:  April 2020 - present

Mentor:  Kartik Shankar PhD

Research Topic:  Understanding how early nutrition impacts different physiological changes in the offspring, as well as the role of sex differences in the placenta leveraging cutting-edge transcriptomic approaches
Meghan Ruebel

Katherine Barrett, PhD

Postdoctoral Fellowship:  July 2020 - present

Mentor:  Susan L. Johnson, PhD

Research Topic:  Infant-caregiver feeding interactions, dietary intake, and growth.




Maigen Bethea, PhD

Postdoctoral Fellowship:  September 2020 - present

Mentor:  Darleen Sandoval, PhD

Research Topic:  Assessing whether vagal circuits contribute to the metabolic benefits of vertical sleeve gastrectomy.
Maigen Bethea

Catherine Cioffi Cohen, PhD, RD

T32 Research Fellowship:  September 2020 - present

Mentors:  Dana Dabelea, MD, PhD and Kartik Shankar, PhD

Research Topic:  Inter-connections of diet quality, body fat distribution, and cardiometabolic disease risk factors in childhood/adolescence.

Stephanie Gilley, MD, PhD

T32 Research Fellowship:  July 2020 - present

Clinical Fellowship: July 2019 - June 2020

Nutrition Postdoctoral Fellowship: August 2018 - June 2019

Mentors: Kartik Shankar, PhD, and Paul Rozance, MD

Research Topic: Longitudinal impact of intrauterine growth restriction and postnatal diet on the gut microbiome.


Emily Hill, PhD, RDN

T32 Research Fellowship: August 2021 - present

Mentor: Sarah Borengasser, PhD, and Nancy F. Krebs, MD

Research Topic: Utilizing metabolomics, informatics, and bio-statistical analyses to examine linkages between laboratory data and clinically relevant outcomes in human nutrition.

Emilly Hill, PhD

Jayne Martin Carli, PhD

AHA Fellowship: April 2021 - present

Mentors: Jim McManaman, PhD and Jenifer Monks, PhD 

Neonatal T32 Fellowship:  May 2020 - March 2021

Mentors: Jim McManaman, PhD, and Jenifer Monks, PhD 

Nutrition T32 Fellowship:  July 2018 - April 2020

Mentors:  Jacob Friedman, PhD yr 1; Jim McManaman, PhD, yr 2

Research Topic: Molecular effects of maternal obesity and diabetes during and after pregnancy on lactation outcomes and infant adiposity.



Megan Lawless, PhD

T32 Research Fellowship: October 2021 - present
Postdoctoral Fellowship: June 2021 - September 2021

Mentor: Susan L. Johnson, PhD

Research Topic:  Research will focus on factors that influence the development of food preferences and eating patterns in early childhood. Further, how facets of children’s diet relate to weight status and growth patterns.
Megan Lawless, PhD

Eunice Odiase, MD

Pediatric Gastroenterology T32 Postdoctoral Fellowship and Global Health Fellowship:  July 2020 - present

Mentor:  Nancy F. Krebs, MD

Research Topic:  Meat intake during early complementary feeding on growth, neurodevelopment, and gut health.

Allison Ta, PhD

Clinical Fellowship:  2021-2022

Mentor: Darcy Thompson, MD

Clinical/Research Interests: Inflammatory Bowel Disease, Exclusive Enteral Nutrition in Inflammatory Bowel Disease, Pneumatosis, Malnutrition in critically ill patients, Gastroenterology Imaging, Sarcopenia

Allison Ta, MD

Stephanie Waldrop, MD, MPH

​Nutrition T32 Fellowship: September 2021 - present

Clinical Fellowship:  2020-2021

Mentors: Sarah Borengasser PhD, Katherine Sauder, Phd, and Darcy Thompson, MD

Clinical/Research Interests:  My research interests include identifying potential epigenetic predictors of adiposity risk in childhood and the influence maternal 1-carbon nutrient intake may have on DNA methylation and adiposity in offspring.

Stephanie Waldrop, MD, MPH


*Each year faculty select a fellow who demonstrates exceptional leadership and dedication to nutrition research to promote collegiality and additional learning opportunities for the Section of Nutrition.

Past Lead Fellows:

  • Madeline Keleher, PhD, 2020-21
  • Jayne Martin Carli, PhD, 2019-20
  • Traci Bekelman, PhD, 2018-19

Past Nutrition Fellows