Written as a nutritional guide, this book delves deep into the science of eating. More relevant to those with diseases like Crohn's, this book can be used by anyone looking to get healthier and decrease digestive pain. Enzymes are explained, measurements are given, and there are even tips on how to cook certain foods. Healthy fast food alternative restaurants are listed, as well as what to do to eat healthy in a foreign nation. Although well researched and organized, the book could do with some pictures. Also, 77 pages of references is a bit much.