
Recent research indicates that intestinal gases are not merely a source of flatulence but actively influence gut motility, transit time, and gastrointestinal symptoms.
Colonic microbiota ferment indigestible dietary fibers and proteins, producing odorless gases like hydrogen and methane alongside hydrogen sulphide which causes bad smells.
Studies show that hydrogen can shorten gut transit time, whereas methane has been observed to slow gut motility and increase transit duration.