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The GutFit Nutrition Podcast

The GutFit Nutrition Podcast

By: Leigh Merotto Dietitian | IBS Gut Health and Fitness Expert
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About this listen

Welcome to the GutFit Nutrition Podcast with Leigh Merotto, RD, MHSc—Registered Dietitian, gut health expert, and long-distance runner. This show is your go-to resource for all things gut health, IBS, and performance nutrition. Each episode delivers evidence-based tips, tools and strategies to help you tackle IBS and digestive symptoms, fuel running and fitness, and feel your best from the inside out. If you're ready to beat painful bloat and gut flare-ups, say goodbye to irregular poops, and thrive in your active life with whole body, REAL science-based tools — this is the show for you!Leigh Merotto, Dietitian | IBS, Gut Health and Fitness Expert Hygiene & Healthy Living
Episodes
  • 12: Should I Use Digestive Enzymes For Meals That Could Trigger My IBS or Gut Symptoms?
    Jun 13 2025

    Told to take digestive enzymes to help with your IBS, or combat meals you think might trigger your gut symptoms? Let’s dive into another listener question in this week’s episode! We discuss what digestive enzymes are, which ones are helpful for various intolerances (FODMAPs, lactose, etc.) and which you might want to consider (and skip!).

    ⏱️ Chapters:


    👩🏻‍💻 RESOURCES & LINKS MENTIONED: ⤵️

    📌 FODZYME: Save 15% off your first order!


    ✉️ CONNECT WITH ME: ⤵️

    📱⁠⁠⁠⁠Follow on Instagram⁠⁠⁠

    🎁 ⁠⁠⁠Grab a Freebie!⁠⁠⁠

    🖥️ ⁠⁠ Shop the Resource Suite⁠⁠⁠

    👩🏻‍⚕️ ⁠⁠⁠Apply For Coaching⁠⁠⁠

    If the GutFit Nutrition Podcast is giving you value - helped your digestion and fitness, made you rethink how you approach your gut health, please consider leaving a review! 🎧

    If you have questions for my listener Q & A episodes, you can submit them here, or send me an email at ⁠leigh@leighmerotto.com⁠. See you soon!

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    8 mins
  • 11: Why Does Fibre Make my IBS Symptoms Worse?
    Jun 6 2025

    In episode 11, we’re answering the question “Why does fibre make my IBS symptoms worse”? You’ve heard (or been told) that fibre is good for you - it can solve all your IBS problems! And yet, when you eat more, you get more gas, pain and bloating. What gives? We dive into why this happens, and what you can do about it in today’s episode.

    ⏱️ Chapters:

    • (0:00) Welcome and intro to the GutFit Nutrition Podcast
    • (0:49) Listener question: Why does increasing fiber worsen my IBS?
    • (1:44) Visceral hypersensitivity explained
    • (2:28) Research: IBS pain response to gut stretching
    • (3:34) Connection between fiber, microbiome imbalance, and symptoms
    • (4:00) Three keys: fiber amount, type, and balance
    • (4:57) Recommended daily fiber intake for IBS
    • (5:20) How fiber fuels gut bacteria and supports gut health
    • (5:44) What happens when fiber intake is too low
    • (6:08) Final thoughts: You can increase fiber with IBS strategically


    👩🏻‍💻 RESOURCES & LINKS MENTIONED: ⤵️

    📌 Visceral Hypersensitivity & IBS

    📌 When the Body Says No by Gabor Mate


    ✉️ CONNECT WITH ME: ⤵️

    📱⁠⁠⁠⁠Follow on Instagram⁠⁠⁠

    🎁 ⁠⁠⁠Grab a Freebie!⁠⁠⁠

    🖥️ ⁠⁠ Shop the Resource Suite⁠⁠⁠

    👩🏻‍⚕️ ⁠⁠⁠Apply For Coaching⁠⁠⁠

    If the GutFit Nutrition Podcast is giving you value - helped your digestion and fitness, made you rethink how you approach your gut health, please consider leaving a review! 🎧

    If you have questions for my listener Q & A episodes, you can submit them here, or send me an email at ⁠leigh@leighmerotto.com⁠. See you soon!

    Show More Show Less
    7 mins
  • 10: Struggling to Hydrate and Always Have to Pee? Let's Talk Overactive Bladder (and the IBS Connection)
    May 30 2025

    In this episode of the GutFit Nutrition Podcast, we’re talking about the symptoms and impacts of Overactive Bladder (OAB), and link to IBS and digestive issues. This episode will empower you to take control with diet/lifestyle strategies and seek expert support, rather than simply living with it.

    ⏱️ Chapters:

    • (0:00) – Introduction
    • (1:46) – Introduction to the episode and focus on overactive bladder (OAB)
    • (2:24) – Meet Callie K, the Bladder Dietitian and her personal story
    • (5:00) – Callie’s journey from IC diagnosis to OAB and treatment challenges
    • (7:25) – Signs and symptoms of overactive bladder
    • (9:00) – Common root causes of OAB including pelvic floor and nervous system
    • (12:00) – How chronic stress and nervous system dysregulation affect the bladder
    • (15:00) – The gut-bladder connection and impact of IBS on urinary symptoms
    • (16:45) – Nervous system regulation as a key to bladder symptom relief
    • (20:56) – Overview of conventional OAB treatments and their limitations
    • (24:01) – OAB in active individuals and runners with IBS
    • (25:55) – Importance of proper hydration and common bladder irritants
    • (29:01) – Harmful bladder habits to stop doing right now
    • (32:07) – Dietary triggers for OAB and how to test sensitivities
    • (38:34) – Callie’s top takeaways for improving bladder health
    • (41:09) – How to connect with Callie K and learn more about her work


    👤 Today’s Guest: Callie Krajcir, MS, RD

    Callie Krajcir, MS, RD, The Bladder Dietitian®, is a Registered Dietitian and leading expert in bladder health. Living with interstitial cystitis (IC) her entire life and OAB during her college years has fueled her passion for helping others with IC, OAB and related conditions. Callie is the founder of Callie K Nutrition, the IC You Podcast, and social media platforms (@callieknutrition) that have empowered hundreds to find relief from bladder pain, urgency, and frequency through practical diet and lifestyle changes. She also serves as Vice Chair of the Board of Directors for the Interstitial Cystitis Association, advocating for awareness and better care for those living with IC.

    📌 Callie’s Website

    📌 Callie’s Instagram

    📌 IC You Podcast


    👩🏻‍💻 RESOURCES & LINKS MENTIONED: ⤵️

    📌 Book: When the Body Says No by Gabor Mate


    ✉️ CONNECT WITH ME: ⤵️

    📱⁠⁠⁠⁠Follow on Instagram⁠⁠⁠

    🎁 ⁠⁠⁠Grab a Freebie!⁠⁠⁠

    🖥️ ⁠⁠ Shop the Resource Suite⁠⁠⁠

    👩🏻‍⚕️ ⁠⁠⁠Apply For Coaching⁠⁠⁠

    If the GutFit Nutrition Podcast is giving you value - helped your digestion and fitness, made you rethink how you approach your gut health, please consider leaving a review! 🎧

    If you have questions for my listener Q & A episodes, you can submit them here, or send me an email at ⁠leigh@leighmerotto.com⁠. See you soon!

    Show More Show Less
    43 mins

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