Book excerpt: More than 60 million Americans suffer from digestive disorders such as gastroesophageal reflux disease and irritable bowel syndrome. In The Inside Tract by Gerard E. Mullin, MD, a comprehensive plan for overcoming these common digestive ailments, you'll learn how a simple regimen of dietary changes, supplements, and a 7-step lifestyle modification program can help heal intestinal problems and get you on track to vibrant health!