About this show:
Dr Brad Leech, PhD, first joined me on the show (#437) for a discussion to update the record on a common practice when addressing pathogens: “weed, seed, feed” which he believes can cause further damage.
In this episode, we explore Autoimmunity and the 4 main ‘feeder lanes’ into it, drawing on the thousands of hours Brad has spent researching it during his PhD and beyond.
We cover
- Leaky Gut
- Dysbiosis in the gut
- Immune dysregulation
- Systemic Inflammation
- Gut testing: What is ‘good’ testing?
- Essential nutrients in an autoimmune picture and how to ensure quality supplements.
- Why we can’t label some foods as inherently ‘good for you’ based on certain farming factors that can change a food’s make-up.
- Microbes of note in the research that can contribute to healing, disease or both, depending on how much there is in the gut
And MORE
I hope it’s helpful for you or someone you know.
Alexx Stuart
Founder of Low Tox Life and the Low Tox movement
Join me on Insta @lowtoxlife
Fancy a few more podcasts we’ve done over the years, related to this one?
- Show #287 – Dr. Gary Kaplan: Why You’re Still Sick And How To Get Better
- Show #78: Dr Terry Wahls on her MS diagnosis, autoimmune conditions and the Wahls protocol
- Show #360 Complex Chronic Illness: A Unique Puzzle With Dr Ben Reebs
- Show #293 – Taking A Tour Of The Immune System And How Best To Support It With Jules Galloway
- Show #344 – Dr Anshul Gupta On Reversing Hashimoto’s Thyroiditis
Want to learn more about this week’s guest?
Website: www.drbradleech.com
NERVA – Private health – Monash Gut Hypnotherapy – https://www.nervahealth.com/au
Instagram: https://www.instagram.com/DrBradLeech
Want to support the show?
Free option: Leave a 5 star review wherever you listen to Low Tox Life – thanks SO much!
Paid + Member PERKS: Join the Low Tox Club – monthly practitioner live masterclasses, a suite of low tox store discounts from around the world and the most supportive and lovely chat group on all low tox topics on the internet: Check it out and join here for just the price of a coffee per month! https://www.lowtoxlifecourses.com/offers/YzLXThRQ/checkout
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Thank you to this month’s show sponsors for helping you make your low tox swaps easier:
@waterscofilters is giving you an added saving off their sale price, giving you 27% off their BIO 500 5.25L benchtop filter until April 15 – Perfect for couples/small families. Head to waterscoaustralia.com.au – Use code LOWTOXWATER – a market leader for 40 years, they filter everything bad out, including PFAS/microplastics, and ensure trace minerals are kept IN for deep hydration.
@ausclimate is our major partner giving you 10% off their range for the whole of 2026, with brilliant Winix Air Purifiers, the best Dehumidifiers I’ve ever used and their new energy-efficient heating, air-circulating and cooling range. code LOWTOXLIFE (also works over and above their sales – pro tip!) https://bit.ly/ShopAusclimate
Be sure to join me on Instagram @lowtoxlife and tag me with your shares and AHAs of this week’s episode.
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About Dr Brad Leech
Dr Brad Leech is a PhD Clinical Nutritionist and Herbalist renowned for his expertise in addressing chronic autoimmune conditions and complex gastrointestinal disorders. He provides complete and personalised care to his patients using functional nutrition, integrative medicine and holistic wellness.
After entering the profession in 2008, Brad has contributed significantly to academia, shaping curricula at universities and delving into research areas such as intestinal permeability, autoimmune disease management, and the therapeutic potential of food-based probiotics. Brad is currently an Adjunct Fellow at the National Centre for Naturopathic Medicine, where he continues to advance natural health sciences.
Currently serving as the Lead Clinical Educator at Co-Biome by Microba, Brad leverages his enthusiasm for cutting-edge science into practical strategies that empower healthcare practitioners to elevate their clinical practice and improve patient outcomes. His role involves translating the latest advancements in gut microbiome research into actionable insights for patient care.
In addition to patient care, Brad is passionate about empowering practitioners with the knowledge to enhance their clinical practice. Over the years, he has mentored thousands of practitioners, providing them with the tools to navigate the complexities of gut health and autoimmunity. He offers two programs, Brad’s Brainiacs: Microbiome Mentoring and Brad’s Brainiacs: Autoimmune Mentoring.
Thank you to this month’s sponsors for partnering with our show and helping you make your swaps with their special offer:
Ausclimate’s highly recommended range of WINIX Air Purifiers is the ideal solution for cleaner, healthier indoor air. Easy to use, reactive features and settings with a truly comprehensive 4-5 stages of purification, including Hospital Grade True HEPA Filtration and Winix’s unique PlasmaWave® technology. Perfect for smoke, dust, pets, viruses, bacteria, household odours, and allergies (covering a variety of allergens). Breathe easier, sleep better, and feel better. Winix; is the most complete air purifier on the market!

Offer: Ausclimate is now giving all Low Tox Life followers an EXTRA 10% OFF their already discounted prices. Simply enter the discount code of LOWTOXLIFE on check out via: https://www.ausclimate.com.au/
This discount can also be redeemed for over-the-phone orders verbally.
Website: www.ausclimate.com.au
Facebook: www.facebook.com/Ausclimate
Instagram: www.instagram.com/ausclimate
About Waters Co Filters
This month Waters Co Filters is giving us a double discount on their benchtop Bio 500 5.25 L
Code: LowToxWater
15% off the sale price, making it 27% off RRP all up 🎉💧
Get all the things you don’t want in your drinking and cooking water OUT, and remineralise with everything you want IN there.
Enjoy! x
Website: https://bit.ly/WatersCo_Bio500
Code: LowToxWater
Instagram Link: https://www.instagram.com/waterscofilters/
Facebook Link: https://www.facebook.com/Waters.Co.Australia/
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Title show track, by LIOR.
Love the podcast music? You will hear excerpts from Lior’s track “Caught Up” – go check it out on iTunes or Spotify if you want to hear the whole song or album, Scattered Reflections. Co-written with Cameron Deyell, it’s a great song and I love the reflective energy of it – perfect for the show, right? Enjoy. Lior is always touring, so do check out his website. It is wonderful to hear him sing live, trust me.
Low Tox Club – The place to bring your low tox life to life.
Want to join a community of like minds and enjoy all the perks of being in the Low Tox Life inner circle such as an online membership platform, 50% off all our Low Tox courses, an awesome chat group, my monthly Q&A, and special guest star interviews for just $49AUD ($29USD/28EUR/23pounds) per YEAR? We have created a special place and set of resources to help you achieve your goals and it’s a wonderful place to be – MORE DETAILS AND REGISTRATION HERE.
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If you would love reading like me or you just simply want to go through the full transcript, you can check below.








