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Love & Guts

Apr 14, 2018

#15 Dr Jason Hawrelak is a research scientist, educator, naturopath and Western herbalist with more than 18 years’ clinical experience. Jason practices at Goulds Natural Medicine, a 136-year-old natural medicine apothecary and clinic located in central Hobart. He did his Honours and PhD degrees examining the causes of dysbiosis and the capacity of probiotics, prebiotics and herbal medicines to modify the gut microbiome and has written extensively in the medical literature on these topics – including 16 textbook chapters.

He is on the Medical Nutrition Council of the American Society for Nutrition and was recently awarded a Fellowship from the American College of Nutrition for his significant contributions to the teaching and practice of nutrition in Australia and North America. Jason is also a Fellow of the Naturopaths and Herbalists Association of Australia. He is Chief Research Officer at, which offers a searchable database that enables easy, evidence-based prescribing of probiotic products and online resources for clinicians, and health-conscious members of the public, to learn more about the human microbiome and how they can positively influence these ecosystems.


In this episode we cover;


  • Why Jason devoted 18 years to researching the gut microbiota
  • How the human microbiota organ impacts our health
  • What a prebiotic and probiotic actually is
  • What probiotics do in the body and it’s not what we previously believed
  • We all have a very unique microbiota, however we discuss what healthy traits we would like to encourage and see in our ecosystem
  • What harms our GIT ecosystem
  • Why probiotic strain specificity is extremely important when selecting a probiotic supplement
  • Why Jason and I are Huge fans of prebiotics and what Jason's favourites are
  • We talk about my favourite topic SCFA, in particular butyrate and dive into Akkermansia muciniphila, Faecalibacterium prausnitzii and other exciting species
  • How the ketogenic diet impacts our microbiota
  • Stool testing vs Molecular testing methods
  • and so much more phew


Find Jason Here