The Independent
December 09, 2021
Robert Martindale, M.D., tells The Independent it is surprising how little we know about how coffee affects the gastrointestinal tract, given it's popularity; drinking a cup of coffee can stimulate the opposite end of the gastrointestinal tract within minutes, which means “it’s probably going through the gut-brain axis.” That is, the arrival of coffee in the stomach sends a message to the brain, which then “stimulates the colon to say, ‘Well, we’d better empty out, because things are coming downstream.’”