Pilot Feasibility Study of Fecal Microbiota Transplant for the Treatment of Small Intestinal Bacterial Overgrowth

Participants will receive approximately 50 grams of human stool/150mL (approximately 107 microbes/mL of suspension) in saline, prepared as per standard collection, preparation, and screening protocols for FMT infusion developed by our institutional stool bank in accordance with recognized standards. Fecal microbiota transplant infused via existing enteral feeding tube or upper elective endoscopy (with infusion into the duodenum) x1.