Previously known as the IHCAN Conferences Webinars
Webinars
Our series of hour-long webinars are completely free to attend. Covering a broad range of subjects, simply use the registration links below to register.
Once registered, you will receive three reminder emails – one a week before the webinar, one a day before and one on the day of the webinar. Each webinar is recorded – you will be sent a link to the recording approximately 48 hours after the event.
*Please note, you are only eligible for the CPD hours if you attend the webinar live*
We apply for CPD accreditation for every webinar from:
Tuesday 6 October 2026
18.30 – 19.30
‘The Thyroid Detective: Finding the Real Culprit — A Root-Cause Framework for Common Thyroid Presentations’
You don’t need to specialise in thyroid health for this to matter to your practice. Thyroid function touches almost everything you see in clinic, fatigue, weight changes, mood, fertility, digestion, skin and hair, sleep, and cycle irregularities. Whatever your focus, there’s a strong chance an undiagnosed or under-addressed thyroid picture is quietly sitting underneath cases you’re already working on.
And too often, it stays hidden. The patient has textbook symptoms. Standard bloodwork comes back “normal.” The GP says there’s nothing wrong. The patient knows something is and the trail goes cold there.
This session is about knowing where to look next. Sonia O’Donnell and Izzy Seadon unpack a cellular framework for understanding thyroid dysfunction, the mechanism behind how chronic stress, mitochondrial strain, infection, gut and liver function, hormonal shifts, and toxin load can each quietly disrupt thyroid hormone conversion at the tissue level, often invisible to standard testing. This is the piece that turns “I don’t know why my patient still feels awful” into a clear, testable, actionable hypothesis.
If you’ve ever suspected a case had a thyroid piece you couldn’t quite pin down, this is the session that shows you how to find it.
In this session, you will learn:
- Why thyroid dysfunction can hide behind normal-looking standard bloodwork, and the cellular mechanism that explains why
- How to read a fuller thyroid panel, including functional ratios that catch what standard testing misses
- The six most common root causes behind thyroid dysfunction in clinical practice — relevant whether you specialise in hormones, gut health, fatigue, fertility, or general practice
- A practical four-phase framework for building a protocol that’s sequenced to actually work
- How this plays out in real case presentations, so you can apply it in clinic the next day
About Sonia O'Donnell
Sonia O’Donnell is a homeopath and naturopath with over twenty years of experience. Her work blends naturopathic diagnostics with herbal medicine, a combined approach that has supported thousands of people with ME, CFS, chronic Lyme and complex childhood needs. Through her experience, she has built a clinic model enabling her to see hundreds of patients without burning out and developing a successful product range of herbal formulas called Synergetic Botanicals that is now sold to patients and practitioners worldwide. She also teaches widely on using plant medicines for everyday health and is the founder of the Hello Wellness range of natural supplement capsules.
Izzy Seadon is a nutritional therapist, herbalist, naturopath, and kinesiologist. She specialises in women’s health and complex hormonal presentations. Her work focuses on identifying and addressing deeper drivers of hormonal imbalance — integrating nutrition, herbs and other naturopathic principles and therapeutics. Izzy is known for her layered, systems-based approach that prioritises treating the individual, helping practitioners and clients through a root cause framework grounded in science and aligned with traditional healing principles.
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The IHCAN Summit Webinars are provided for professional education and debate and is not intended to be used by non-medically qualified individuals as a substitute for, or basis of, medical treatment. We take your privacy seriously, by registering for any of our webinars you accept our privacy policy.