89 episodes

Welcome to the Metagenics Institute Podcast where Healthcare Practitioners can hear innovative, cutting-edge information from leading experts from around the world. Join your host, Nathan Rose, to explore the latest evidence in Natural Health, challenge and debunk industry myths and offer practical, tangible, clinical tools which will transform your practice.

Metagenics Institute Podcast Metagenics

    • Health & Fitness
    • 4.6 • 40 Ratings

Welcome to the Metagenics Institute Podcast where Healthcare Practitioners can hear innovative, cutting-edge information from leading experts from around the world. Join your host, Nathan Rose, to explore the latest evidence in Natural Health, challenge and debunk industry myths and offer practical, tangible, clinical tools which will transform your practice.

    Brain-gut Therapies with GI Psychologist Dr Megan Riehl

    Brain-gut Therapies with GI Psychologist Dr Megan Riehl

    *The information in this podcast is intended for Healthcare Practitioners.


    Dr. Megan Riehl is one of only a small number of specialists in the world who practices as a Gastrointestinal Psychologist. She is the Clinical Director of the GI Behavioural Health Program at the University of Michigan, offering comprehensive treatment options for people suffering disorders of gut-brain interaction (DGBI), such as irritable bowel syndrome (IBS). Whilst a great deal of attention in natural medicine is paid to how the gut affects brain function, in this episode, Dr Reihl highlights how the brain can have a profound effect on GI function.


    Dr Riehl describes how gastrointestinal (GI) conditions can be better understood and managed by transitioning our framework from a mechanistic model to a biopsychosocial model. She discusses the connection between factors such as early life stress, catastrophising and symptom hypervigilance with the incidence and severity of IBS. Dr Riehl walks listeners through several brain-gut strategies and therapies from self-care to practitioner-guided therapy. Learn about the efficacy of cognitive behvioural therapy (CBT) and gut-directed hypnosis for DGBI and discover several digital tools that practitioners can consider. To finish, the conversation turns to another area Dr Riehl is passionate about – screening and managing disordered eating that is linked to, or can develop from, DGBI. Tune into an episode jammed packed with clinical pearls!


    Useful Links


    Dr Riehl’s diaphragmatic breathing tutorial - https://www.youtube.com/watch?v=UB3tSaiEbNY


    Nerva gut-directed hypnosis app - https://www.mindsethealth.com/hypnotherapy/nerva


    ROME Foundation - https://theromefoundation.org/


    GI On Demand - https://giondemand.com/


    Jagielski CH, Riehl ME. Behavioral Strategies for Irritable Bowel Syndrome: Brain-Gut or Gut-Brain? Gastroenterol Clin North Am. 2021 Sep;50(3):581-593. doi: 10.1016/j.gtc.2021.03.006. Epub 2021 Jun 25. PMID: 34304789. https://pubmed.ncbi.nlm.nih.gov/34304789/


    Riehl ME, Scarlata K. Understanding Disordered Eating Risks in Patients with Gastrointestinal Conditions. J Acad Nutr Diet. 2022 Mar;122(3):491-499. doi: 10.1016/j.jand.2021.03.001. Epub 2021 Apr 20. PMID: 33893063. https://pubmed.ncbi.nlm.nih.gov/33893063/


    Call out to those who may be interested in participating in an endometriosis study: https://www.nicm.edu.au/research/clinical_trials/endometriosis_study

    • 46 min
    Gut Microbes as Frenemies with Dr Joe Alcock

    Gut Microbes as Frenemies with Dr Joe Alcock

    *The information in this podcast is intended for Healthcare Practitioners.


    Dr Joe Alcock is not your typical MD. Joe’s day (or night) job is as a practicing emergency Physician and a Professor in the University of New Mexico Department of Emergency Medicine. However, Joe also has a deep interest in both evolutionary medicine and microbiome science and has the unique skill of integrating and translating these disciplines into practical outcomes.


    In this episode, Dr Alcock explains how, since time immemorial, our gut microbes have had a love/hate relationship with us, and how this concept of ‘conflict and co-operation’ can explain the trials and tribulations of research on microbiome composition in disease states, probiotic successes and failures and a new approach to feeding ourselves and our resident microbiome. Tune in for a fun and insightful tour of the microbiome as Joe discusses conditions such as gut health, insulin resistance and mood disorders.


    Links and resources


    Dr Alcock’s website: http://evolutionmedicine.com
    Dr Alcock’s Twitter: https://twitter.com/joealcockmd?lang=en
    Wasielewski H, Alcock J, Aktipis A. Resource conflict and cooperation between human host and gut microbiota: implications for nutrition and health. Ann N Y Acad Sci. 2016 May;1372(1):20-8. doi: 10.1111/nyas.13118.
    https://pubmed.ncbi.nlm.nih.gov/27270755/
    Alcock J, Lin HC. Fatty acids from diet and microbiota regulate energy metabolism. F1000Res. 2015 Sep 9;4(F1000 Faculty Rev):738. doi: 10.12688/f1000research.6078.1.
    https://pubmed.ncbi.nlm.nih.gov/27006755/

    • 1 hr 20 min
    What the research is telling us about time-restricted feeding, caloric restriction and fasting, with Greg Potter

    What the research is telling us about time-restricted feeding, caloric restriction and fasting, with Greg Potter

    *The information in this podcast is intended for Healthcare Practitioners.


    Back by popular demand, Greg Potter joins Nathan to discuss time-restricted feeding. Potter shares his thoughts on recent research, including early time-restricted eating compared with daily caloric restriction, the 5:2 diet and fasting-mimicking diet. The pair also discuss whether we should eat breakfast like a king, lunch like a prince, and dinner like a pauper. Tune in to find out!


    Greg Potter completed PhD research at the University of Leeds, focusing on sleep, circadian rhythms, nutrition, and metabolism. He regularly contributes to various newspapers, magazines, blogs and websites, is a captivating presenter and has been a guest on nearly 100 podcast episodes.


    *Highlights *



    How timing your food intake during the day impacts your physiology (15:30)
    Rhythmic changes in gene transcription (22:00)
    Study discussion: Calorie Restriction with or without Time-Restricted Eating in Weight Loss (27:00)
    Study discussion: Early time-restricted eating compared with daily caloric restriction: A randomized trial in adults with obesity (36:00)
    Is there value in eating breakfast like a king, lunch like a prince, and dinner like a pauper? (45:00)
    About the 5:2 diet (53:00)
    The fasting mimicking diet (60:00)
    Trade-offs of time-restricted feeding (71:00)
    GLP-1 agonists for weight management (77:00)
    Greg Potter’s recommendations (85:00)


    Links


    Greg Potter's website: [Gregpotterphd.com](Gregpotterphd.com)


    Instagram handle: @gregpotterphd


    The Principles of Resilient Nutrition - https://resilientnutrition.com/


    Link to paper: Calorie Restriction with or without Time-Restricted Eating in Weight Loss - https://www.nejm.org/doi/10.1056/NEJMoa2114833


    Link to paper: Early time-restricted eating compared with daily caloric restriction: A randomized trial in adults with obesity - https://onlinelibrary.wiley.com/doi/10.1002/oby.23420


    Link to paper: Timing of food intake predicts weight loss effectiveness - https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC3756673&blobtype=pdf


    Link to paper: Intermittent fasting interventions for treatment of overweight and obesity in adults: a systematic review and meta-analysis - https://pubmed.ncbi.nlm.nih.gov/29419624/


    Link to paper: Effect of Fasting-Mimicking Diet or Continuous Energy Restriction on Weight Loss, Body Composition, and Appetite-Regulating Hormones Among Metabolically Healthy Women with Obesity: a Randomized Controlled, Parallel Trial - https://pubmed.ncbi.nlm.nih.gov/33420673/

    • 1 hr 40 min
    Iron insights: homeostasis, deficiency and repletion with Professor Toby Richards

    Iron insights: homeostasis, deficiency and repletion with Professor Toby Richards

    *The information in this podcast is intended for Healthcare Practitioners.


    This week’s guest, Professor Toby Richards delivers a schooling on all things iron, including the mechanisms in place to maintain iron homeostasis, signs and symptoms of deficiency, pathology interpretation tips, and the role this essential nutrient plays in health and physical fitness. If you’re seeing clients in clinical practice or simply eager to learn more about iron, this episode confers valuable insights and updates from an expert in the field.


    Professor Richards is the Lawrence Brown Chair in Vascular Surgery, Head of Division of Surgery and Director of the Clinical Trials Unit at University of Western Australia (UWA). He is also Honorary Professor at the Institute of Clinical Trials and Methodology, University College London (UCL) and Honorary Professor of Anaesthesia at Monash University.
    Professor Richards has led a series of international clinical trials and supervised 16 PhD students and well over 60 graduate research projects (Masters/ MSc/BSc). He is a mentor to trainees in surgical research internationally. He is actively engaged in the international trials networks; the International VASCC & UK VERN Research Group in vascular surgery. Professor Richards has over 150 peer reviewed publications and $14M of research funding in the last decade.


    *Highlights *



    How anaemia influences physical fitness 5:00
    Symptoms of iron deficiency (9:20)
    Iron homeostasis (20:00)
    Haemoglobin (36:00)
    Iron infusion (42:00)
    Lactoferrin and other therapeutics to treat iron deficiency (49:00)


    Links


    Prof Toby Richard’s biography and link to research:
    https://research-repository.uwa.edu.au/en/persons/toby-richards

    • 1 hr
    Resilience in the Face of Trauma with Professor George Bonanno

    Resilience in the Face of Trauma with Professor George Bonanno

    *The information in this podcast is intended for Healthcare Practitioners.


    In this episode, Nathan speaks with George A. Bonanno, a Professor of Clinical Psychology at Columbia University, Teachers College. His research focuses on how people respond to potentially traumatic events, such as disaster, war, assault and life-threatening injury, whether they present with post-traumatic stress disorder or not. These studies have revealed that the natural response to stressful situations is not trauma, but resilience, and as such, we may be underestimating our ability to rebound without suffering long-term consequences.


    George has authored two books, The Other Side of Sadness: What the New Science of Bereavement Tells Us About Life After Loss and The End of Trauma: How the New Science of Resilience is Changing How We Think About PTSD.


    Highlights



    How history has shaped our understanding of trauma (5:00)
    Recovery patterns following a traumatic episode (11:00)
    The resilience blind spot (15:30)
    Potentially traumatic events (PTEs) (17:00)
    Human stress response capacity (25:00)
    The resilience paradox (31:00)
    How to build your resilience (37:00)
    Future research in the field of resilience (48:00)


    Useful Links


    Link to George’s book, The End of Trauma: How the New Science of Resilience is Changing How We Think About PTSD


    Link to George’s book, The Other Side of Sadness: What the New Science of Bereavement Tells Us About Life After Loss

    • 55 min
    Life through the lens of evolutionary psychology with Professor Glenn Geher

    Life through the lens of evolutionary psychology with Professor Glenn Geher

    *The information in this podcast is intended for Healthcare Practitioners.


    In this episode, Nathan speaks with Glenn Geher, Professor of Psychology and Founding Director of Evolutionary Studies at the State University of New York at New Paltz. Professor Geher has been the recipient of the New Paltz Alumni Association’s Distinguished Teacher of the Year Award, along with Chancellor’s Awards for both Teaching and Research Excellence from the State University of New York. He has penned several books including Evolutionary Psychology 101 and more recently, Positive Evolutionary Psychology, and contributes a regular blog to Psychology Today, called Darwin’s Subterranean World.


    This episode serves as a brilliant introduction to evolutionary psychology, as Professor Geher explains how an evolutionary perspective can shed light on modern-day issues, such as mental health conditions. He describes the significance of living in an environment we, as humans, were not evolved to exist in – coined an evolutionary mismatch. This fascinating discussion provides insight on how the principles of evolutionary psychology helps us understand human behaviour and the human experience.


    Highlights



    An evolutionary perspective on mood disorders (7:00)
    Our minds are not evolved for large scale politics (19:00)
    Criticisms of evolutionary psychology (24:00)
    Neuroticism may have served a purpose (32:00)
    Ultimate versus proximate causation (45:00)
    Positive evolutionary psychology (60:00)


    Useful Links


    Link to Geher’s book, Positive Evolutionary Psychology:
    https://www.amazon.com/Positive-Evolutionary-Psychology-Darwins-Living/dp/0190647124/ref=sr_1_17?keywords=geher&link_code=qs&qid=1555656027&s=gateway&sourceid=Mozilla-search&sr=8-17


    Link to Geher’s book, Evolutionary Psychology 101:
    https://www.amazon.com/Evolutionary-Psychology-101-Psych/dp/0826107184/ref=pd_sim_sccl_1/132-8454497-6012610?pd_rd_w=p7iHG&pf_rd_p=dee70060-7c6d-4721-a321-50a27281cd22&pf_rd_r=B2WDFD1SXKKMYWVK592J&pd_rd_r=2c4bfc33-40d6-4562-8d61-b836e4bd41f1&pd_rd_wg=CcGlb&pd_rd_i=0826107184&psc=1


    Glenn Geher’s blog, Darwin’s Subterranean World: https://www.psychologytoday.com/au/blog/darwins-subterranean-world


    David Sloan Wilson’s book, Evolution for Everyone: https://www.penguinrandomhouse.com/books/191808/evolution-for-everyone-by-david-sloan-wilson/#:~:text=By%20turns%20thoughtful%2C%20provocative%2C%20and,us%20to%20improve%20that%20world

    • 1 hr 12 min

Customer Reviews

4.6 out of 5
40 Ratings

40 Ratings

budgielove ,

Good way to keep abreast

Good show for practitioners and anyone interested in deeper news and research on nutrients, supplements, diet, wellness.
One suggestion: it could be made more palatable for a wider audience if the show was shorter in duration. 30 mins is a good amount of time for a listener to get enough in depth but not so long it feels prohibitive to listen often… which is my case.

L_Naturopathy ,

Informative and interesting

I always learn something new when I listen to this, translates the latest science into understandable bite sized chunks. Nathan is a great host and asks all the right questions!

jdsperth ,

Circadian rhythms

A fascinating podcast on the effect of light and sleep on health. Great listening!

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