Program Description

Investigations of the complex interactions between the diet, gut microbiome, and host characteristics that provide functional benefits to the host is an area of great interest and current exploration. Technologies are available to assess mechanisms that may explain these functional benefits to the host.  One emerging functional benefit from changes in gut microbiome is calcium absorption and indices of bone health.  Research indicates that prebiotic fibers alter the gut microbiome which enhances fermentation of the fibers causing production of short-chain fatty acids.  These changes have been positively correlated with increased calcium absorption in humans and increased bone density and strength in animal models.  Dietary fibers may offer an additional means to enhance calcium absorption with the possibility of stimulating the gut microbiome and ultimately influencing bone health. This session aims to present the innovative technologies that can assess fibers’ impact on the gastrointestinal tract and the mechanisms to possibly explain health benefits.  Additionally, emerging research on the role of prebiotic fibers on calcium absorption and bone indices through alternations in the gut microbiome will be presented.  Finally, solutions will be presented on the role of added fiber in filling the gap between fiber recommendations and intakes.

Learning Objectives

At the end of this session, attendees will be able to:

• Identify recent advances in research technology that may improve the understanding of fibers’ impact on intestinal processes and interactions as well as explain the mechanisms behind fibers’ health benefits.
• Describe the potential role of specific added fibers in bone health through the modulation of calcium absorption and effects on the gut microbiota.
• Provide practical applications of how added, isolated fibers can help consumers meet dietary fiber recommendations.

Agenda

Opening/Introductions, Taylor Wallace, PhD, George Mason University

Insights into Novel Technologies for Studying Added Fibers’ Impact on Intestinal Microbiome and Markers of Intestinal Health, Massimo Marzorati, PhD, ProDigest

Role of Prebiotic Fibers in Modifying Calcium Absorption and Bone Indices via Changes in Gut Microbiota, Connie Weaver, PhD, Purdue University

Solutions for Meeting Today’s Fiber and Nutrient Needs, Patricia Williamson, PhD , Tate & Lyle

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