The Functional Lab Testing Series | Episode 5: Do You Need to Test for Mold, Heavy Metals, Toxins, Food Sensitivities, or Genetics?

EPISODE #101 — JUL 17, 2026

The Functional Lab Testing Series | Episode 5: Do You Need to Test for Mold, Heavy Metals, Toxins...
Tanya Ellie, Functional Practitioner & Health Coach

After you've addressed the foundations, how do you know whether it's time to dig deeper? And more importantly, how do you know which advanced tests are actually worth running? With thousands of functional lab tests available today, it's easy to feel like you need to test everything. But more testing doesn't always lead to better answers.

In this fifth episode of my Functional Lab Testing Series, we're talking about when advanced testing makes sense and when it doesn't. We discuss why most people don't need to test everything, the situations where deeper testing can provide valuable answers, and how I decide whether to recommend tests like mold, heavy metals, environmental toxins, food sensitivities, or genetics. If you've ever wondered whether you're missing something deeper or feel tempted to order every test available, this episode will help you understand when advanced testing is truly worth it.

Resources:

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In this episode:

01:05 – What the foundations tell us

03:42 – More testing isn't better testing

04:46 – When it doesn’t make sense to test

06:37 – When it does makes sense to go deeper

07:43 – Mycotoxin testing

09:52 – Heavy metal testing

12:29 – Environmental toxin testing

14:34 – Food sensitivity testing

16:14 – Genetic testing

18:43 – Why these can’t replace foundational tests

21:07 – Next week: answering your questions

I’m so grateful to have you here, friend. If you love the show, be sure to follow and leave me a review. New episodes drop every Friday!

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The Functional Lab Testing Series | Episode 4: How Your Metabolism Impacts Energy, Hormones, Mood & Recovery