Education

  • Postdoctoral Fellow, Military Nutrition Division, US Army Research Institute of Environmental Medicine, 2018
  • PhD, Nutritional Sciences, Penn State University, Department of Nutritional Sciences, 2014
  • MS, Nutritional Sciences, University of New Hampshire, Department of Molecular, Cellular, and Biomedical Sciences, 2010
  • BS, Nutritional Sciences, University of New Hampshire, Department of Molecular, Cellular, and Biomedical Sciences, 2008

Research Interests

Dr. Hennigar is director of the Micronutrient Metabolism Lab, which investigates strategies to improve micronutrient status in vulnerable populations. Current projects in his lab focus on the impacts of food deprivation and infection on iron requirements and novel iron supplementation strategies to correct iron deficiency in children and women of reproductive age.

Selected Publications

  1. Hennigar SR, Miller KM, Murphy RD, Braymer A, Mayet CL, Greenway FL, Cheung SN, Weschenfelder C, Berryman CE. Effects of consuming an iron supplement with a meal containing animal or plant-based meat on indicators of iron status and anemia in women of reproductive age with iron deficiency: a randomized, controlled study. Am J Clin Nutr, 2025, in press.

  2. Miller KM, Reddy MB, Quashie D, Velez FJ, Ali J, Singh P, Hennigar SR. Iron-enriched Aspergillus oryzae as an alternative to iron sulfate to limit iron accumulation, growth, and motility of the enteric pathogen S. Typhimurium. Br J Nutr, 2023; 130:411-416.

  3. Murphy RD, James KM, Ippolito JR, Barney DE, Miller KM, Murphy NE, Gwin JA, Pasiakos, SM, McClung JP, Margolis LM, Hennigar SR. Mild to moderate food deprivation increases hepcidin and results in hypoferremia and tissue iron sequestration in mice. J Nutr, 152:2198-2208, 2022.

  4. Barney DE, Ippolito JR, Berryman CE, Hennigar SR. A prolonged bout of running increases hepcidin and decreases dietary iron absorption in trained female and male runners. J Nutr, 152:2013-2014, 2022.  152:2039-2047, 2022.

  5. Ippolito JR, Piccolo BD, Robeson MS, Barney DE, Ali J, Singh P, Hennigar SR. Iron deficient diets modify the gut microbiome and reduce the severity of enteric infection in a mouse model of S. Typhimurium-induced enterocolitis. J Nutr Biochem, 107:109065, 2022.

  6. Hennigar SR, Olson CI, Kelley AM, McClung JP. Slc39a4 in the small intestine predicts zinc absorption and utilization: a comprehensive analysis of zinc transporter expression in response to diets of varied zinc content in young mice. J Nutr Biochem, 101: 108927, 2022.

  7. Hennigar SR, McClung JP, Hatch-McChesney A, Allen JT, Wilson MA, Carrigan CT, Murphy NE, Teien HK, Martini S, Gwin JA, Karl JP, Margolis LM, Pasiakos SM. Energy deficit increases hepcidin and exacerbates declines in dietary iron absorption following strenuous physical activity: a randomized-controlled cross-over trial. Am J Clin Nutr, 113:359-369, 2022.

PubMed Bibliography