Dr McDougall's Digestive TuneUp Author:John A. McDougall Dr. John McDougall breaks through cultural taboos with a candid, humorous look at how the digestive tract functions. Join Dr. McDougall in his office as he motivates two of his middle-aged patients to make wiser lifestyle choices in order to regain their digestive health. Learn how a low-fat, cholesterol-free, plant-based diet can prevent and c... more »ure constipation, hemorrhoids, IBS, and other chronic intestinal disorders. Readers will also be able to understand the workings of their digestive system in layperson's terms.« less