Gulp: adventures on the alimentary canal / Mary Roach / 348 pages

I listened to this on CD and it is a totally en"grossing" non-fiction book on the alimentary canal from the mouth to well the other end.  Roach shares research, science, history, taboos, treatments, and all matter of very interesting facts and thoughts about the alimentary canal and how it works.  She interviews scientists currently engaged in studies and shares stories of historical research that will leave you gasping.  If this is narrative non-fiction, I love it.  The CD version is read by Emily  Woo Zeller who uses just the right amount of humor and correct tone to imbue the feelings of the author.  All together a very interesting book.  Wait until you read about Elvis....