If you are looking for an intense read on the human body's digestion, this is the book for you!
Your Gut Has a Mind of it's Own, The Second Brain a Groundbreaking New Understanding of Nervous Disorders of the Stomach and Intestine by Michael Gershon, M.D. has given me an education and greater understanding of how my body gets it's nutrients from food and what an amazing wonder it is. Have you ever thought about the acid in your stomach? It can dissolve metal, why doesn't it dissolve the stomach? Did you know that even if you are paralyzed your gut has it's own nervous system and will still properly work without cues from your brain?
This book is written by an M.D. but in a very readable style. It is certainly not leisure reading but I enjoyed finally understanding so much. Dr. Gershon details much of the current research he has been involved in and his own story of wanting to become a researcher, but the bulk of the book is a step by step explanation of what happens to food you eat, called Part II The Travelogue. Information is power so if you need to understand your digestive system better I strongly recommend this book and I just posted my copy on Paperback Swap!