IBS Nutrition Podcast by The IBS Dietitian

12. IBS Diarrhea 101: Flare-Ups, Overflow & Food Intolerances Explained

Jessie Wong, Registered Dietitian and Gut Expert Episode 12

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If IBS diarrhea is running your life, it’s time to get to the root cause. In this episode, dietitians Jessie Wong and Brooke Keenan explain the three main types of diarrhea in IBS—flare-up, overflow, and food intolerance—and how to tell which one you have.

You’ll hear real-life case studies and learn how to spot the signs of constipation-driven diarrhea, hidden food intolerances, and digestive patterns that standard treatments often miss.

In This Episode, You’ll Learn:

✔ Why diarrhea is sometimes caused by constipation

✔ The difference between overflow vs. flare-up diarrhea

✔ How food intolerances like gluten or FODMAPs play a role

✔ Why the low FODMAP diet isn’t always the right approach

✔ Tools like Imodium, fiber, and stress management for relief

✔ How clients like Kinsey, Jessica, and Kathy found lasting results

Timestamps:

[0:00] Why diarrhea is so misunderstood in IBS

[2:18] Type 1: Flare-up diarrhea explained

[4:28] Kinsey’s story: Chronic constipation disguised as diarrhea

[8:50] Type 2: Overflow diarrhea + Kathy’s breakthrough

[14:10] Symptom tracker & masterclass resources

[15:12] Type 3: Food intolerance diarrhea + Jessica’s case

[19:58] Common triggers that make IBS worse

[21:13] Tools that help: Imodium, fiber, diet & more

[23:45] Long-term control strategies

Resources Mentioned:

🎓 Free IBS Relief Masterclass – Learn our 3-step approach to managing IBS: https://ibsdietitian.com/masterclass

📋 Free Symptom Tracker – Start tracking your symptoms today: https://poopedia.org/resources

Listen to episode 5 to learn more about the low FODMAP diet.

Listen to episode 1 to learn more about tracking symptoms.

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📷 Follow us on Instagram: @ibs.dietitian

🖥️ Free IBS Relief Masterclass: https://ibsdietitian.com/masterclass

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