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Should you be fibermaxxing? Here's what the science says

May 13, 2026 · 12m

Summary

Host Emily Kwong explores the social media trend of "fiber maxing" with gastroenterologist Dr. Berkley Limkakeng Jr. They discuss why most Americans are fiber deficient and the health benefits of soluble, insoluble, and prebiotic fibers. The episode advises increasing intake gradually through whole foods like fruits, vegetables, and whole grains rather than relying on supplements or trendy sodas. Listeners are urged to find a balanced, individualized approach to avoid digestive issues and nutrient deficiencies.

Topics discussed

Intro: Tiny Desk Contest Tour and Shortwave welcome The 'Fiber Maxing' trend and why Americans lack fiber Sponsors: Edward Jones and NetSuite Dr. Limkakeng on fiber benefits and microbiome effects Soluble vs. insoluble fiber and prebiotics explained Best ways to increase fiber: whole foods vs. supplements Prebiotic sodas and the risks of extreme fiber intake How to safely increase fiber and find your balance Outro: Listener questions and production credits NPR support appeal and promos for Up First and Planet Money
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