“White and dark kidney beans reduce colonic mucosal damage and inflammation…”

“…both WK and DK bean-supplemented diets enhanced microbial-derived SCFA metabolite production, gut barrier integrity and the microbial defensive response in the healthy colon, which supported an anti-inflammatory phenotype during colitis. Collectively, these data demonstrate a beneficial colon-function priming effect of bean consumption that mitigates colitis severity.“

https://www.ncbi.nlm.nih.gov/pubmed/25841250