Role of Fibre and Prebiotics in GI Health

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Dr. Wendy Dahl, PhD
University of Florida

Dr. Wendy Dahl is an Associate Professor in the Food Science and Human Nutrition Department, University of Florida and holds an adjunct faculty position in the College of Pharmacy and Nutrition, University of Saskatchewan, the institution where she received her PhD in nutrition in 2005. She is a registered dietitian and Fellow of Dietitians of Canada. She leads research examining the role of plant foods, fiber, prebiotics and probiotics on gastrointestinal and general health and wellness, and chronic disease management, with a special interest in older adults. She has published widely in extension, health professional and peer-reviewed journals, including co-authoring the recent Academy of Nutrition and Dietetics' position paper on dietary fiber.

Presentation Overview/Abstract

Provision of non-digestible carbohydrates to the colon may be the most important dietary determinant of the gut microbiota and its metabolic activity. Products of carbohydrate fermentation, short-chain fatty acids, contribute to gut integrity and motility, whereas diets with insufficient fiber shift the microbiota to increased proteolytic fermentation and its deleterious products. Adequate fiber intake contributes to a reduced risk of inflammatory bowel diseases, irritable bowel syndrome and constipation, and may have a role in treatment and symptom management of gastrointestinal diseases. This session will explore the mechanisms by which fiber, including prebiotic fiber, modulates microbiota and its fermentation, and gastrointestinal health and disease.

***Original Source: "2017 Thematic Conference", Saturday, January 14, 2017

Length: 35:41

Type: Video

Last Updated: February 2, 2017

Name Type
Role of Fibre and Prebiotics in GI Health Video
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