Clinical Nutrition in Gastrointestinal Disease

Alan Buchman, MD, MSPH

Chapter 11: Prebiotics, Probiotics, And Dietary Fiber (continued)

Martin H. Floch, MS, MD, MACG

The intestinal microflora is essential in maintaining health. Intestinal microecology consists of a complex of the microflora, gastrointestinal (GI) secretions, foods, and the products of the gut wall. Understanding the roles of: 1) prebiotics, 2) probiotics, and 3) dietary fiber in this GI physiology is essential to understand the role of intestinal microecology in health and disease. All three affect the intestinal microflora and its effect on the host. The definition and role of each are described in this chapter. “Prebiotics are non-digested food ingredients that beneficially…