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Nancy Krebs, MD, MS, - Head, Section of Nutrition

12700 East 19th Avenue
Research Complex 2, Room 5025
Aurora, CO  80045

Work Phone:  303-724-5850


  • Fellowship, Pediatric Nutrition and Gastroenterology, Department of Pediatrics, University of Colorado School of Medicine
  • Pediatric Internship & Residency, Department of Pediatrics, University of Colorado School of Medicine
  • M.D. with honors, University of Colorado School of Medicine
  • Graduate Nutrition Fellow, Georgetown Univ. Affiliated Program for Child Development, Georgetown University Hospital
  • M.S., University of Maryland   
  • B.S. with honors, Iowa State University 


Research Interests

My primary research interests have extended from detailed metabolic studies of trace mineral metabolism (especially Zn & Fe) across the life cycle to large scale nutrition RCT. The focus of these studies has been to define dietary Zn requirements and to characterize homeostasis, including metabolic regulation and adaptation to different physiologic states, including in normal infants (particularly breastfed), pregnant & lactating women.  My research laboratory extensively employs mass spectrometry (ICP-MS) to measure stable isotope tracers and multi-element mineral analyses in biological samples.

Lab Members


Current Funding

NIH/NICHD U10HD/076474 (Krebs/Hambidge)                                05/01/13 – 04/30/19
The Global Network and Preconception Maternal Nutrition: GN participation also involves common protocols with other GN member sites, including preconception study, maternal-newborn registry. Role: PI
Bill & Melinda Gates Foundation/Global Dev’t Grant (Krebs/Hambidge) 11/15/12 – 10/31/19
Preconception Maternal Nutrition: The objective is to determine the benefits on fetal and offspring growth (birth-2 years) in austere environments of commencing daily multiple micronutrient fortified lipid based nutrition supplement ≥ 3 mo prior to conception compared to initiation of same supplement at 12 wk gestation.  Role: Co-PI
NIH/NIDDK T32 DK007658 (Krebs)                                                   07/01/16 – 06/30/21
Institutional Training Program in Nutrition
The primary goal of this training program in nutrition is to train the next generation of physician scientists and basic researchers who are committed to the prevention of disease and health promotion through careers in human nutrition.  Role: PI 
NIH/NIDDK R01 DK113957-01A1 (Krebs/Reisdorph/Campbell)      07/01/18 - 06/30/23
Predicting Health Outcomes of a Mediterranean Diet via Metabolomics of Foods and Biospecimens:  The project goals are to identify molecular signatures in biospeciments from human subjects exposed to Mediterranean versus Western diets, to associate these signatures with health indicators, and to test possible food-health indicator correlations in a prospective, controlled feeding trial.  Role:  PI
NIH R01DK101659 (Hernandez)                                                        09/15/14 – 07/31/19
Randomized Trial of Diet in GDM: Metabolic Consequences to Mother & Offspring
The study compares effects of higher complex CHO diet vs conventional lower CHO diet on maternal glycemic & lipid profiles, maternal microbiome, neonatal hepatic fat & neonatal adiposity.  Role: Co-I
National Cattlemen’s Beef Association (Krebs)                                10/01/16 – 09/31/18
Protein Quality Early in Life: Potential Mechanisms of Impact on Growth and Later Obesity Development
This study evaluates protein source in infancy on growth, body composition, gut microbiome/metagenomics in second year of life. Role: Co-PI  
Thrasher Research Fund (Krebs)                                                      05/01/17 – 04/30/20
Offspring Neurodevelopment after Maternal Preconception Nutrition Supplement: Evaluating a New Tool
Project will test the feasibility and utility of a simple, less expensive tool to holistically assess neurodevelopment in young children in low resource settings, to address gap in gauging burden of impaired early childhood development and evaluating the impact of interventions. Role:  PI


  • 1990-93 - Fellow, PEW National Nutrition Program  
  • 1991 - Resident Research Award, American Academy of Pediatrics
  • 1993, ’96, ’97, ’98, 2009 - Excellence in Teaching Award, Univ. of Colorado School of Medicine
  • 1998, ’99 - Physician Nutrition Specialist Award, American Society for Clinical Nutrition
  • 2010 - Samuel J. Fomon Nutrition Research Award, American Academy of Pediatrics
  • 2013 - Golden Stethoscope Award for Clinical Teaching, CU SOM
  • 2015 - Roland Weinsier Award for Excellence in Medical Nutrition Education, American Society for Nutrition
  • 2016 - Robert Suskind and Leslie Lewinter-Suskind Pediatric Nutrition Lifetime Achievement Award, ASN