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   26 episodes



Let's Gut Real - Easy to Digest Nutrition Science

Andrea Hardy

26 episodes

May 11, 2021

Can you use the low FODMAP diet for IBS in kids? with Julia Celestini 

IBS doesn't just effect the child, but the whole family. Diet is one tool to help manage this condition in kids, and many times we see the Low FODMAP diet as a first line approach. But should we be using the Low FODMAP diet in kids?

Julia Celestini, RD and I discuss how and when to properly use the Low FODMAP diet in paediatrics.

Julia is a Registered Dietitian in Ontario, Canada. Julia completed her dietetic training at SickKids hospital in Toronto, Ontario in 2019. SickKids hospital is one of the largest pediatric centres in Canada and uniquely offers a pediatric-focused dietetic internship. Julia is also trained in the low FODMAP diet for irritable bowel syndrome (IBS) through Monash University. Following her internship Julia started her own private practice combing her 2 greatest passions - pediatric nutrition and digestive health. She provides family-centred care to infants, children and teenagers with complex gastrointestinal conditions across (most of) the country. She supports her patients in their journey to finding symptom relief and developing a positive relationship with food.

Julia and I discuss:

  • IBS in kids – what is the prevalence and impact
  • What is a FODMAP & the low FODMAP diet?
  • Is the low FODMAP diet appropriate in kids?
  • What to consider before the low FODMAP diet in kids?
  • How to implement the low FODMAP diet for kids?
  • Can we use a modified low FODMAP diet in kids with success?
  • What other non-food things can we do to manage IBS in kids without using the low FODMAP diet?
  • How can practitioners talk about digestive symptoms with kids & teens?
  • Where are kids getting nutrition information from?
  • Why is helping children develop a healthy relationship with food in gut disorders important?

Connect with Julia at or on Instagram @happybelliesnutrition. You can join Julia's Low FODMAP for Kids Facebook Group here as well!

Apr 13, 2021

Top Microbiome Myths with Dr. Megan Rossi 

Dr Megan Rossi, also known as The Gut Health Doctor, is a Registered Dietitian and Nutritionist with an award-winning PhD in gut health, as well as the author of Love Your Gut, an easy-to-digest lifestyle guide to gut health and beyond, coming out in the US in January 2021.

Megan is considered one of the most influential gut health specialists internationally and her PhD was recognised for its contribution to science receiving the Dean’s Award for outstanding research.

As a leading Research Fellow at King’s College London, Megan is currently investigating nutrition-based therapies in gut health, including prebiotics, probiotics, dietary fibres, plant-based diversity, the low-FODMAP diet and food additives, as well as having set up The Gut Health Clinic, where she leads a team of gut-specialist dietitians to make an evidence-based approach more accessible. More recently, Megan has created her own gut health food company, Bio&Me, to bridge the gap between science and food industry.

Frustrated that her research findings weren’t reaching the public, and instead seeing fad and potentially dangerous misinformation on gut health being spread, Megan took to social media to share credible information and science-based advice, building an active community with over 245,000 of people so far.

Megan has also been recognised as Business Insider’s Top 100 Coolest People in Food & Drink and was named Young Australian Achiever of the Year in the UK 2020.

Megan and I discuss:

  • How she became interested in digestive health and the gut microbiome
  • Probiotics – when should I take them?
  • Fermented foods and our health
  • Is sugar bad for gut health?
  • What does candida do in our gut? Is it bad for us?
  • Her top tips for a healthy gut

Connect with Megan at Or on Instagram or Facebook @TheGutHealthDoctor

Mar 9, 2021

Listen to those 'Gut Feelings' in Disorders of the Gut Brain Interaction with Dr. Drossman 

The amount of stigma there is around non-structural disease (like IBS) has a fair amount of history - dating all the way back to the 17th century!

Dr. Drossman has led the field pioneering the Rome Foundation, and how we not only diagnose and treat disorders of the gut brain interaction (formally known as functional gut disorders), but more importantly, how we treat patients. 

Dr. Drossman received his M.D. degree at Albert Einstein College of Medicine and subspecialized in biopsychosocial medicine and Gastroenterology. He received his gastroenterology training at the University of North Carolina where he founded the UNC for Functional GI and Motility Disorders.  Currently he is Professor Emeritus of Medicine and Psychiatry in Gastroenterology at UNC. He is a Fellow of the American College of Physicians, a Master of the American College of Gastroenterology, Past-President of the American Psychosomatic Society (1997) and Founder and President of the Rome Foundation for 29 years. In addition, he founded the Drossman Center for the Education and Practice of Biopsychosocial Care as an entity to help train physicians in relationship-centered biopsychosocial care with an emphasis on communication skills and enhancing the patient-doctor relationship.

Dr. Drossman and I talk about:

  • Dr. Drossman’s background and how he became involved in neurogastroenterology
  • why did we shift from ‘functional gut disorders’ to ‘disorders of the gut-brain interaction’ and why is this important?
  • what is ‘mind body dualism’ and how has it influenced medicine and patient care?
  • how has the field of neurogastroenterology evolved?
  • how does this shift in approach help us to provide better care and interventions for patients & improving the patient doctor relationship?
  • what types of therapies are evidence-based to help treat DGBI’s
  • Dr. Drossman’s tips for health care providers improve relationships with their patients to provide good quality care

You can learn more about Dr. Drossman and pick up a copy of his amazing new book, ‘Gut Feelings- Disorders of the Gut Brain Interaction and the Patient-Doctor Relationship 

Feb 9, 2021

Fact or Fiction? Dysbiosis & the Gut Microbiome in Patient Care with Gabrielle Fundaro, PhD 

Is dysbiosis fact or fiction? And can we use the information we have about the gut microbiome to diagnose and treat disease?

In this episode of Let's Gut Real I interview Gabrielle Fundaro, PhD on more deeply understanding gut microbiome science, and how practitioners and clinicians need to communicate that science in a connective way for their patients.

Gabrielle Fundaro holds a PhD in Human Nutrition, Foods, and Exercise from Virginia Tech as well as a BS in Exercise, Sport, and Health Education from Radford University. She is an ACE-certified Health Coach with both Monash Low-FODMAP and ISSN Sport Nutritionist certifications and provides client-centered coaching and consulting telehealth services via Vitamin PhD Nutrition that focus both on gastrointestinal disorders and health behavior change. In her free time, she enjoys hiking, reading, spending time with my dogs, and lifting weights.

In this episode, Gabrielle and I chat about:

  • Her research with the gut microbiome and lipopolysaccharides (LPS)
  • How do we define gut health?
  • Dysbiosis – what is it? Is there a diagnostic test? The problems with this?
  • Why do you see patients gravitate towards gut microbiota tests and other gut health tests that aren’t validated?
  • How do we find the balance between discussing science and connecting with patients?
  • Can the results of 1 study to provide health interventions?
  • Red flags & green flags to watch out for when reading about the gut microbiome on the internet
  • How health care providers need to do a better job at communicating and connecting with their patients -and how to do that! 

To learn more from Gabrielle, follow her on Instagram  @vitaminphd or visit her website at

Jan 12, 2021

Masqueraders of IBS with Kate Scarlata, RD 

What are some conditions that look a lot like irritable bowel syndrome? Kate explores conditions that can masquerade as IBS and often lead to prolonged digestive symptoms! 

Kate Scarlata, MPH, RDN, LDN is a Boston-based dietitian with 30 years of experience. Kate’s expertise is in gastrointestinal disorders and food intolerance, with a particular focus on the application of the low FODMAP diet for functional gut disorders. She was awarded the Outstanding Massachusetts Dietitian Award and recognized as Boston’s Best Dietitian by Boston Magazine. Kate is the author of numerous books and articles on digestive health topics including the New York Times Best Seller, The 21 Day Tummy Diet. Her latest book is The Low FODMAP Diet Step by Step. Kate completed her postgraduate training at Brigham and Women’s Hospital, a Harvard Medical School teaching affiliate.

Kate and I talked about the conditions typically on the radar which include:

  • Inflammatory bowel disease
  • Celiac disease
  • Colorectal Cancer
  • Microscopic Colitis

And then we get into conditions not typically on the radar, which include:

  • GI infections
  • Mast cell activation syndrome
  • Milk protein intolerance
  • SIBO
  • Sucrase isomaltase deficiency (CSID)

And also discuss the importance of recognizing that IBS is a very real condition that has several excellent management options too! 

If you don’t already follow Kate, you should she is on Instagram @katescarlata and on Twitter @KateScarlata_RD: and can learn more at 

Nov 17, 2020

What Does Your Microbiome Say About You? with Colin Hill, Ph.D 

In this episode of Let's Gut Real, I interview Colin Hill Ph.D on how our microbiome develops, the role it plays in our health, current research limitations and mistakes we make when looking at the gut microbiome, and things we can get excited about for future research. 

Colin Hill has a Ph.D in molecular microbiology and is Professor of Microbiology at University College Cork, Ireland. His main interests are in infectious disease, particularly in the role of the gut microbiome in protecting against microbial infections. He is also a Principal Investigator in APC Microbiome Ireland in Cork, a large Science Foundation Ireland supported research centre working with industry devoted to the study of the role of the gut microbiota in health and disease.  In 2005 Prof. Hill was awarded a Doctor of Science by the National University of Ireland in recognition of his contributions to research. In 2009 he was elected to the Royal Irish Academy and in 2010 he received the Metchnikoff Prize in Microbiology and was elected to the American Academy of Microbiology.  More than 75 students have done their PhD’s in his laboratory.  He has published more than 550 papers and holds 25 patents.

We talk about

  • The evolution of humans and microbes
  • Why you ‘get the microbiome you deserve’
  • How will we define a healthy microbiome, what are the limitations?
  • Thoughts on commercial kits – can we really interpret them in individual care?
  • Getting back to what Mother Nature has given us as a form of drug therapy by way of using microbes and microbial chemicals to treat disease

To learn more about Colin Hill, see his research at University College Cork or follow him on Twitter


Nov 3, 2020

New ways to diagnose bile acid diarrhea with Dr Robert Battat 

Bile acid diarrhea is a common cause of diarrhea in patients with IBS and IBD. Currently, our diagnostic tools are unaccessible and often, therapeutic trials with bile acid sequestrants are used in the diagnosis. Dr Robert Battat shares his research with a new diagnostic marker, C4, in the diagnosis and management of B.A.D., leading to more targeted care for patients.

Robert J. Battat, M.D. is an expert in inflammatory bowel disease specializing in Crohn's Disease and Ulcerative Colitis. He is an Assistant Attending Physician at the New York-Presbyterian Hospital/Weill Cornell Medicine and the Jill Roberts Center for Inflammatory Bowel Disease.    

Dr. Battat obtained his medical degree and completed both his internal medicine residency training and clinical gastroenterology fellowship at McGill University in Montreal, Canada. He subsequently completed a clinical and research fellowship in inflammatory bowel disease at the University of California, San Diego and at Robarts Clinical Trials under Dr. William Sandborn and Dr. Brian Feagan.      

He has a major interest in personalized medicine in inflammatory bowel disease and has extensively published scientific articles on this topic. This includes the development of a serum tess to diagnose bile acid malabsorption -which leads well into our topic today!

Dr Battat and I discuss:

  • What is bile acid diarrhea? 
  • How does bile acid diarrhea develop?
  • How is it diagnosed? 
    • SEHCAT Test
    • Therapeutic trial
    • C4 Testing as a measurement for precursor to bile acids
  • Is it a common cause of unexplained diarrhea in your practice?
  • How is BAD managed? 
  • Do you often see an overlap between BAD and IBS? IBD & BAD? 
  • Where the research is going with BAD diagnosis and management and what can patients and health care providers expect?

You can read Dr. Battat's research here:

Battat, R., Duijvestein, M., Casteele, N. V., Singh, S., Dulai, P. S., Valasek, M. A., ... & Jain, A. (2019). Serum Concentrations of 7α-hydroxy-4-cholesten-3-one are Associated with Bile Acid Diarrhea in Patients with Crohn’s Disease. Clinical Gastroenterology and Hepatology, 17(13), 2722-2730.

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