Guoyao WuDepartments of Animal Science and Medical Physiology and Faculty of Nutrition, Texas A&M University, College Station, TX 77843, USAInt. J. Mol. Sci.2023, 24(12), 10075;https://doi.org/10.3390/ijms241210075 This article belongs to the Special Issue Nutrition and Gut HealthVersion NotesOrder Reprints Excerpt Note: In lieu of an abstract, this is an excerpt from the first page. The small intestine is a highly differentiated and complex organ with many nutritional, physiological, and immunological functions [...] Article Metrics Citations Article Access Statistics Journal Statistics Multiple requests from the same IP address are counted as one view.