Much of the food you eat is absorbed by your digestive system. But some makes it all the way through those twists and turns and comes out the other end.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Much of the food you eat is absorbed by your digestive system, which includes your ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Brian Robert Boulay, University of Illinois Chicago (THE CONVERSATION) Advertisement ...