An estimated 500 to 1,000 bacterial species reside in each person’s gut, perhaps numbering 100,000 trillion microorganisms. In a new paper, published July 5, 2022 in Cell Reports, researchers at University of California San Diego School of Medicine used mouse models to explore how diet and feeding patterns affect these intestinal microbes — and the health of the hosts, particularly with obesity and type 2 diabetes.
In both mice and men, the ileum is the final stretch of the small intestine, connecting to the cecum, the first part of the large intestine. In the ileum, nutrients are drawn out of liquefied food; in the cecum, which also marks the beginning of the colon, the process of extracting water begins.
Both processes are complex, dynamic and profoundly influenced by factors ranging from the types of foods consumed and when, to the microbial residents of the gut, whose presence…