Interference of Dietary Polyphenols with Potentially Toxic Amino Acid Metabolites Derived from the Colonic Microbiota

Varying amounts of undigested or partially digested proteins reach the colon where they are metabolized by the microbiota, resulting in the formation of various compounds. In humans, their accumulation is potentially harmful, and it has been proposed that they could be involved in the development of pathologies such as colorectal cancer and ulcerative colitis.