The GutFit Nutrition Podcast

The GutFit Nutrition Podcast

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!

Episodes

July 18, 2025 75 mins

If you’ve been feeling frustrated, limited, or even afraid to move because of pelvic floor symptoms like leaking, urgency or pelvic pain — you’re not alone. These symptoms are common especially in those dealing with gastrointestinal issues like IBS, IBD and endometriosis. This episode will give you hope, validation, and the tools to start rebuilding trust in your body.

⏱️ Chapters: 

    • (0:00) – Intro
    • (2:18) – Meet the Guest: Cour...
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Endometriosis affects 1 in 10 women, yet many still go years without answers. Symptoms can range from intense pelvic pain and painful periods to bloating, bowel and bladder issues, fatigue, infertility, and more.

And for those with IBS, it can be incredibly confusing to tease apart what’s gut-related and what might be something more. In today’s episode we will chat about what endometriosis is, the link with IBS and gut health, and ...

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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: 

  • (0:00) Welcome to the GutFit Nutrition Podcast
  • (0:47) Intro to Listener Q&...
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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 questio...
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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, t...
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In this episode, we’re diving into the actual diagnosis of Irritable Bowel Syndrome (IBS). As an IBS and gut health Dietitian, I am always explaining to my clients and community that IBS is a true medical diagnosis and that your symptoms are valid! We discuss the hallmark symptoms of IBS, IBS subtypes, common drivers and causes of IBS, and how to receive a proper diagnosis. 

⏱️ Chapters: 

  • (00:00) – Intro

  • (00:48) – Listener Q&A...

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In today’s Episode, we’re exploring PCOS and dysbiosis—specifically, how your gut microbiome can influence the development and management of Polycystic Ovary Syndrome. We break down the science behind the gut-hormone connection and what it means for those navigating gut symptoms like IBS, SIBO, or GERD alongside hormonal conditions like PCOS. 

⏱️ Chapters:

  • (0:35) – Intro
  • (1:24) – Exploring the Gut-Hormone Connection in PCOS
  • (2:07) ...
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Welcome to our first listener Q&A Episode! This question comes from Bianca from Canada: Why does stress make my IBS and digestive symptoms worse?

This topic is super important, and fairly complex. I see the connection play out very often in my clients with digestive issues like IBS, SIBO and IBD. More often than not, they know that stress is a huge trigger for flare-ups. And when they come to me, many are often in a high-stress ...

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Today, we’re tackling a topic that so many runners struggle with—how to fuel properly to prevent GI distress. Whether you’ve experienced mid-run stomach cramps, bloating, or the dreaded emergency bathroom stop, you know how much gut issues can derail your performance. So, how can you fuel smarter and run stronger?

Fuelling endurance while balancing gut health is a topic I work with many of my coaching clients on, and joining me in ...

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Today’s episode is a recording from a live webinar I recorded with Dede Wilson, Cofounder of FODMAP Everyday® and The Queen Zone™. If you experience both irritable bowel syndrome (IBS) and anxiety, you are not alone. These two conditions occur together more often than you may have realized.

⏱️ Chapters:

  • (00:00) – Intro
  • (01:31) – Meet your hosts: Leigh Merotto & Dédé Wilson
  • (02:54) – How common is anxiety with IBS?
  • (05:00) – Anxi...
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In this episode, we’re diving deep (literally!) into the world of abdominal massage—a powerful yet often overlooked tool for supporting digestion, relieving abdominal discomfort, and improving gut health. Our guest, Benedict San Juan, shares how this hands-on technique can benefit those struggling with IBS, constipation, bloating, reflux, PMS, and even post-surgical adhesions. 


⏱️ Chapters:

  • (00:00) – Welcome & episode int...
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In this episode of The GutFit Nutrition Podcast, we’re speaking all about fatty liver disease and the connection to the gut microbiome. Whether you're struggling with fatty liver and IBS, looking for expert guidance on fatty liver disease, or want practical strategies to support your gut-liver axis, this episode has you covered.

⏱️ Chapters:

  • (00:00) – Intro
  • (02:22) – Meet Andy De Santis, RD
  • (04:41) – What Is the Liver & Wha...
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This episode was a recording from a live webinar hosted by the amazing FODMAP Everyday. We dive deep into Visceral Hypersensitivity (VH) which is considered a hallmark of IBS and is likely responsible for the discomfort and pain you experience. Listen as I chat with Dede Wilson from FODMAP Everyday on this oh-so important topic!

⏱️ Chapters:

  • (00:00) – Welcome & Episode Intro
  • (01:00) – Meet Dede Wilson & FODMAP Everyday
  • (02...
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In this first episode of the GutFit Nutrition Podcast, we’re chatting all about gut health. If you’ve been wondering what exactly it means to have good gut health, and what that looks like (bowel movements, symptoms, energy & more), this episode has you covered!

⏱️ Chapters:

  • (00:00) – Welcome to the Podcast
  • (00:48) – What Is Gut Health?
  • (02:01) – How Digestion Works: GI Tract 101
  • (04:23) – Defining a H...
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