Small intestine: Your meal, or "bolus of digested food known as chyme," Ferira explains, will then move into the small intestine via the pyloric sphincter, where digestive enzymes (many of which are secreted by the pancreas) and bile from the gallbladder break it into even smaller pieces. These pieces are absorbed from the gut into the bloodstream to be utilized by the entire body. "A unique array of probiotic species reside in the small intestine, also interacting with our dietary inputs," Ferira says. You can expect food to travel through the muscle-lined small intestine for one to five hours depending on what you've eaten.
