Abstract
The role of the microbiome in influencing the development and course of human disease is increasingly understood and appreciated. In diverticular disease, the microbiome presents an intriguing potential link between the disease and its long-established risk factors, dietary fiber and industrialization. However, current data have yet to demonstrate a clear link between specific alterations in the microbiome and diverticular disease. The largest study of diverticulosis is negative and studies of diverticulitis are small and heterogeneous. Although multiple disease-specific hurdles exist, the early state of the current research and the many un- or underexplored clinical phenotypes present a significant opportunity for investigators to improve our knowledge of this common and incompletely understood disease.