Phenols are organic compounds that can be produced by gut bacteria during the fermentation of certain amino acids, particularly tyrosine. Some phenols, such as p-cresol, may have toxic effects in high concentrations and are associated with dysbiosis or imbalances in gut microbiota. Elevated phenol levels in stool can reflect microbial activity that may burden the liver’s detoxification systems. Monitoring phenols helps assess how well the gut is managing protein breakdown and microbial fermentation processes.
Phenols are compounds produced by intestinal bacteria during protein fermentation, especially from tyrosine.
To evaluate microbial fermentation activity and potential imbalances or dysbiosis in the gut.
Yes, elevated phenols can be toxic and may indicate microbial overgrowth or a burden on detoxification pathways.
Diet (especially high-protein intake), gut microbiota composition, and intestinal transit time can all influence phenol levels.