The MediHerb Podcast

David Casteleijn - The Science & Stories of Herbal Heroes: Passionflower

In this clinically rich conversation, David Casteleijn revisits Passionflower through a far more nuanced lens than its traditional “mild anxiolytic” label. Drawing on decades of practice and deeply personal clinical observations, David explores the herb’s powerful role in acute nervous system dysregulation—particularly in states of panic, PTSD, and heightened sympathetic activation. He shares practical insights into “stacked” dosing strategies, demonstrating how passionflower can rapidly interrupt escalation cycles without the residual sedation, making it a valuable tool both in-clinic and for patient self-management.

Beyond acute use, this episode expands the conversation into long-term nervous system retraining, highlighting passionflower’s potential role in supporting neuroplasticity and reducing reliance on substances such as alcohol and anxiolytics. David also challenges common assumptions around dependency, safety, and herb-drug interactions, while unpacking emerging insights into its broader neurotransmitter activity. With discussion spanning ADHD, addiction patterns, and herb selection, this episode offers practitioners a deeper, more flexible framework for prescribing Passionflower across a wide spectrum of presentations.

Angela Hywood - MediHerb Unplugged: Unanswered Questions

In this episode of the MediHerb Podcast, we welcome Angela Hywood to draw on some unanswered questions from the MediHerb Unplugged livestream. Angela shares her evidence-informed approaches to supporting patients in complex clinical scenarios, with dosing strategies and clinical rationale.

 

Bio: Angela Hywood is an experienced naturopathic clinician with over 26 years of clinical experience, specialising in integrative endocrinology, women’s health, fertility and pregnancy care. Angela is a well-known speaker at complementary and integrative medicine conferences in both Australia and internationally and has published articles in complementary medicine journals in Australia and USA.

Louise Cork - Beyond the Impact: A Naturopathic Framework for Post-Concussion Recovery

Concussion is often minimised as a “head knock,” yet it represents a complex traumatic brain injury with far-reaching systemic consequences. In this episode, we welcome Louise Cork to unpack the physiological cascade that unfolds following impact — from axonal shearing and ionic shifts to glutamate excitotoxicity, blood-brain barrier disruption, neuroinflammation, and gut permeability. We explore how this acute response can evolve into persistent post-concussion syndrome (PCS), and why some patients remain symptomatic months, or even years, after the initial injury.

Through a functional naturopathic lens, this conversation provides practical guidance on assessment, red flags, collaborative care, and therapeutic layering, while discussing the critical role of the gut-brain axis, immune activation, metabolic dysfunction, glial priming, autonomic dysregulation, and mitochondrial compromise. With the right support — nutrients, targeted herbal medicine, and realistic lifestyle rehabilitation, post-concussion outcomes are not fixed, and meaningful recovery is possible.

Kerry Bone - MediHerb Unplugged: Unanswered Questions

Following the MediHerb Unplugged livestream, renowned herbalist Kerry Bone returns to address some of the audience’s unanswered questions. Drawing on decades of clinical and research experience, Kerry explores complex and often misunderstood areas of herbal therapy, including the use of berberine-containing herbs, the role of St Mary’s Thistle in gut health, and evidence-informed perspectives on Echinacea and Withania in autoimmunity and endometriosis.

The conversation also examines time-restricted eating and how targeted herbs may support metabolic and longevity pathways, before moving into deeper clinical territory with discussions on plaque stabilisation, APOE4 and dementia risk, with key herbal considerations in Parkinson’s disease.

Packed with practical insights and integrative clinical frameworks, this episode is essential listening for practitioners navigating complex, chronic presentations.

Dr Elizabeth Steels - Biohacking for Longevity: Translating Trends into Therapeutic Practice

In this episode, we welcome Dr Elizabeth Steels and explore the rapidly growing world of biohacking and longevity medicine—examining the technical, lifestyle, supplemental, and medical interventions people are turning to in pursuit of vitality and human improvement. Beth unpacks the pros and cons of this trend-driven space, including the risks of information shared without context or personalisation, and the growing pressure to self-optimise through constant tracking.

We discuss the unique role natural healthcare practitioners play in guiding patients through this landscape with evidence-based, individualised support. From a naturopathic perspective, targeted biohacking techniques for vitality are well understood as foundational pillars—mitochondrial health, autophagy, inflammation reduction, and gut function, to support patients in navigating the noise and focus on interventions that truly enhance cellular health and reduce long-term disease risk.

With realistic goals and incremental change, Beth highlights how sustainable, personalised biohacking with naturopathic principles can support meaningful improvements in healthspan—with natural healthcare practitioners leading the way in keeping it grounded, balanced, and evidence-informed.

 

Bio: Elizabeth is a clinical biochemist and nutritionist with over 30 years experience in clinical practice, research, clinical trials, formulation and regulatory affairs. She runs a consulting and research clinic in New Farm, Brisbane. She is also an Adjunct Senior Research Fellow, School of Pharmacy, University of Queensland, and has a growing team of clinical naturopaths enrolled in MPHIL and PHD students, also becoming researchers to further support natural health research. The projects vary from metabolic disease and diabetes, pain and peripheral neuropathy, GIT health, candida overgrowth, to probiotics for bone health in menopause. She is well published and often speaks at academic and industry events.

Diana Boot - Integrative Prescribing: Collaborative Care in Natural and Conventional Medicine

In this episode, we welcome pharmacist and Naturopath Diana Boot, and explore the safety considerations when co-prescribing herbal and nutritional therapies alongside conventional medications. Offering a unique dual perspective, Diana unpacks the complexities and opportunities of integrative prescribing in clinical practice. Together, Diana and Kerry examine the vital role natural healthcare practitioners play in supporting patients who are taking pharmaceuticals, helping optimise outcomes while maintaining safety and clarity in care.

The discussion highlights practical strategies for collaborating effectively with GPs, strengthening communication pathways, and building trust within the patient–GP–practitioner partnership. We also delve into key risk factors relevant to specific conditions and address how to make informed decisions around continuing medication while concurrently supporting the patient with evidence-based natural interventions. This conversation brings an integrative, clinically grounded lens to co-prescribing, empowering practitioners to navigate it with confidence and care.

Visit Natural Script at https://www.naturalscript.au/

Kerry Bone - Herbal Strategies to Reduce Ischaemic Heart Disease and Cardiovascular Risk

In this episode of the MediHerb Podcast, esteemed Herbalist and Phytotherapist Professor Kerry Bone explores the complex landscape of Ischaemic Heart Disease (IHD) and how herbal medicine can address critical treatment areas often overlooked by conventional drug therapy. This episode also delves into gender-specific differences in cardiovascular disease, the impact of stress and anger on heart health, and how adaptogens can help mitigate emotional and physiological triggers.

Kerry discusses emerging research on the role of herbs in supporting vascular integrity, plaque stability, and mitochondrial function, with therapeutic strategies targeting inflammation, microvascular health, connective tissue repair, and endothelial resilience. Gain insight into evidence-based herbal interventions for reducing cardiovascular risk with Kerry’s key herbal prescriptions, including his specialised formulation for post-cardiovascular event recovery, as well as practical considerations for co-prescription alongside conventional medications.

Laura Taylor - The Gut–Microbiome–Menstrual Axis: Emerging Insights into Menstrual and Reproductive Health

PROMO OFFER: $150 off Endo-SIBO Mastery - a five-part on-demand course to help practitioners support their endo clients to overcome endo belly. Listeners can use the code MEDIHERB to get $150 off, bringing the price to $197. Sign up for the course at jadeandlaura.com.

 

In this episode, we explore the fascinating intersection between the gut microbiome, the oestrobolome, and menstrual health — with a particular focus on Endometriosis and other inflammatory menstrual disorders.
Join Laura Taylor as she unpacks emerging research on the gut–microbiome–menstrual axis and how dysbiosis, pathogenic overgrowth, and microbial metabolites influence systemic inflammation, hormonal balance, and reproductive outcomes.

Discover how conditions such as SIBO, SIMO, and colonic methane overgrowth may underpin the so-called “Endo belly,” and why targeted testing can be a crucial part of patient care. We also discuss the role of LPS endotoxins, oestrogen recirculation, and impaired detoxification pathways in worsening reproductive symptoms.

Laura shares her clinical insights, including go-to herbs, nutrients, and evidence-informed dietary and lifestyle strategies to reduce pathogenic load, support detoxification and elimination, enhance intestinal barrier function, and restore microbiome balance.