What Are Carbohydrates? Fiber, Starch, and Sugar Explained

podcast
Written By Shelley Rael, MS RDN

Carbohydrates are often discussed in extremes, either promoted as essential or dismissed as harmful. This episode clarifies what carbohydrates are by breaking them into their three primary categories: fiber, starch, and sugar.

 

The discussion explains how each type functions in the body, how digestion differs among them, and why grouping all carbohydrates together can lead to confusion. It also addresses common misconceptions about blood sugar, weight gain, and carbohydrate quality.

 

This episode builds on the January 2026 carbohydrate blog series and connects to the broader February 2026 discussion of the 2025 to 2030 Dietary Guidelines. Understanding carbohydrates is essential for interpreting public health recommendations and making informed nutrition decisions.


Read more: What Are Carbohydrates? Fiber, Starch, and Sugar Explained

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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/
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