Dr. Amir Zarrinpar is a physician scientist and a board-certified gastroenterologist, known for his research at the intersection of circadian biology, gut physiology, and the gut microbiome. Dr. Zarrinpar's recent research is focused on better functional characterization of the gut microbiome and how specific microbial functions can alleviate disease. He has made groundbreaking contributions in the field where he and his team demonstrated that genetically engineered native gut bacteria can be used to functionally manipulate the gut microbiome and affect host glucose homeostasis, as well as alleviate hyperglycemia after only a single treatment. His contributions to the field have been supported by organizations such as NIDDK, NHLBI, NIBIB, NCI, NIAID, and NIMH.