Readers will find an invaluable aid to regaining digestive health in Dr. Mc Dougalls Digestive Tune-Up. Here, the veteran author & physician gives all the information needed to understand how digestion works & what foods will bring about a healthy digestive system. Dr. John Mc Dougall is one of the countrys foremost advocates for the use of diet to prevent & treat chronic illness. The right dietary changes can prevent, treat, &, in some cases, completely eliminate a host of digestive disorders. This book discusses: acid reflux, colitis, colon polyps, ulcers, constipation, gallstones, & more.