
The Transit Time Twist: How Stool Speed Shapes Your Gut Microbiome
A 2023 review found that people with faster versus slower gut transit harbor distinct microbiomes; longer stool retention can influence gut acidity and metabolites and is linked to inflammatory/metabolic disorders, while faster transit corresponds to a different microbial profile associated with a low-fat, high-carb diet. Using swallowable sensor capsules and the Bristol Stool Scale across thousands of participants, researchers show transit time strongly shapes the gut microbiome and could help tailor dietary and probiotic treatments for conditions like IBS, liver disease, and even Parkinson's, with the study published in Gut.


