Science Daily said:Two studies -- one in mice and the other in human subjects -- offer the first definitive evidence that exercise alone can change the composition of microbes in the gut. The studies were designed to isolate exercise-induced changes from other factors -- such as diet or antibiotic use -- that might alter the intestinal microbiota.
This link was posted from Dr. Rhonda Patricks fb page. Really fascinating, and yet not that surprising that leading an active, fit lifestyle can progressively make headway in the gut microbiome and digestive system.