Fecal Microbiota Transplantation (FMT) is an established treatment for Clostridium difficile (C. diff) infection refractory to medical management. As C. diff infection usually arises due to significant disturbances in the gut microbiome, FMT is typically performed to restore a healthy microbiome among affected patients who have failed other treatments. Diverticulitis is a major, and often recurrent, source of morbidity in the U.S for which antibiotics and surgical resection constitute the only treatment options to date. Although alterations of the intestinal microbiome have also been shown among patients with diverticular disease, research on FMT in diverticulitis is sparse. The intended goal of this project is to determine the feasibility, effectiveness and safety of FMT in the treatment of uncomplicated diverticulitis, using clinical outcomes and microbiome analyses.