Fiber 101: Soluble, Insoluble, Functional Fiber, and Resistant Starch

podcast

Feb 20

Fiber is more than just a digestive aid. It is a category of carbohydrates with distinct physiological effects depending on type and source.

This episode provides a foundational overview of soluble fiber, insoluble fiber, functional fiber, and resistant starch. It clarifies how each type behaves in the body, how they influence cholesterol, blood glucose, satiety, and gut health, and why the distinction between naturally occurring and added fibers matters.

The conversation also connects fiber intake to the broader carbohydrate discussion from January and to the current Dietary Guidelines series. Emphasis is placed on food-based sources, dietary patterns, and the gap between recommended intake and actual consumption.

Understanding fiber requires more nuance than simply increasing grams per day. The type, source, and overall dietary pattern influence outcomes. This episode provides a practical, evidence-based framework for evaluating fiber intake without oversimplification.

Listen: Episode 228 What Are Carbohydrates? Fiber, Starch, and Sugar Explained

Schedule a free-30 minute introductory call today to learn how I can help you reach your health and wellness goals.

Subscribe to get new episodes each week automatically.

Join the Real World Nutrition Facebook Group

Form for Show Ideas.

Social Links and More

Real World NutritionReal World Nutrition PodcastNutrition PodcastCarbohydratesFiberSoluble FiberInsoluble FiberFunctional FiberResistant StarchCarbohydratesDietary GuidelinesGut HealthCholesterolBlood SugarRegistered DietitianPublic Health Nutrition

Shelley Rael, MS RDN

Shelley A. Rael, MS RDN, is a dedicated Registered Dietitian Nutritionist based in New Mexico, USA. As the owner of Real World Nutrition, her private practice, she's passionate about guiding individuals toward eating and living healthier in the real world. Beyond one-on-one consultations, Shelley is a multifaceted professional. She's a podcaster, author, speaker, and consultant known for her commitment to dispelling nutrition myths and providing evidence-based information. Her mission is to empower people to achieve improved health, wellness, and energy without resorting to restrictive diets or misinformation.

https://www.shelleyrael.com/