

The Health Detective Podcast by Functional Diagnostic Nutrition
Reed Davis
We bring you interviews from people who have conquered the trickiest of health challenges using the Functional Diagnostic Nutrition Philosophy and similar healing modalities. You’ll hear from experts who have been through the wringer with their health issues, and yet managed to come out on the other side.
If you are interested in natural healing and/or functional medicine, this is the podcast for you!
Visit www.functionaldiagnosticnutrition.com to learn more about the Functional Diagnostic Nutrition program.
If you are interested in natural healing and/or functional medicine, this is the podcast for you!
Visit www.functionaldiagnosticnutrition.com to learn more about the Functional Diagnostic Nutrition program.
Episodes
Mentioned books

Nov 13, 2025 • 53min
From Stage to Health Coaching: Public Speaking Skills Every FDN Needs w/ Debra Wanger
What do acting, teaching, and functional health coaching have in common? More than you might think.
In this episode with Debra Wanger, we explore how skills from the stage and classroom can transform not only the way we communicate health, but also the way professionals care for themselves in demanding careers.
As an actor, teacher, and Functional Diagnostic Nutrition Practitioner (FDN-P), today’s guest bridges these worlds to help both actors and health professionals thrive. Whether it’s maintaining resilience in a high-stress, often unhealthy profession—or learning to deliver your message with clarity and authenticity—these strategies can change everything.
🔑 What You’ll Learn in This Episode:
How actors and public speakers can build a healthy, balanced, and resilient lifestyle despite the pressures of their profession.
Practical tools for overcoming stage fright and mastering public speaking so FDNs and other health professionals can share their message with confidence.
Why Functional Diagnostic Nutrition provides a targeted, root-cause approach that elevates both health coaching and communication.
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Debra Wanger:
Website: debrawangercoach.com
Instagram: @debradiva
Facebook: @debra.wanger
LinkedIn: @debra-wanger

Nov 10, 2025 • 56min
You Can Save Your Thyroid – But Only If You Do THIS First w/ Dr. Eric Osansky
Dr. Eric Osansky—a chiropractor, clinical nutritionist, and certified functional medicine practitioner—has been transforming lives by treating thyroid and autoimmune thyroid conditions with natural approaches since 2009.
From being diagnosed with Graves' disease himself to becoming an author and podcast host, Dr. Osansky's powerful journey from illness to health highlights the significant impact of natural treatments and lifestyle changes.
You'll Learn:
- How Dr. Osansky managed to reverse hyperthyroidism/Graves' disease without long-term medication, radioactive iodine, or thyroid surgery
- The truth about the importance of diet, stress management, and sleep in treating hyperthyroidism
- Insights into how functional medicine testing can identify triggers of Graves' disease
- Why his work is making a massive impact on those suffering from thyroid conditions
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Dr. Eric Osansky:
Website: savemythyroid.com
Instagram: @drericosansky
Facebook: @groups/saveyourthyroid
YouTube: @NaturalThyroidDoctor/videos

Nov 6, 2025 • 56min
Struggling to tolerate HRT? Chinese Medicine can help! w/ Dr. Jannine Krause
Dr. Jannine Krause, a naturopathic doctor and acupuncturist, discusses alternative solutions for women who have difficulties with hormone replacement therapy (HRT).
Dedicated to transforming women's healthcare in their 40s and beyond, Dr. Krause provides valuable insights to navigate midlife challenges.
Key Takeaways:
- What to do when HRT isn't working for you
- How acupuncture eases hormone imbalance side effects
- The overlooked benefits of Tai Chi & Qi Gong for surviving midlife woes
- Why Regulating the nervous system prior to starting any hormone replacement is crucial for optimal results
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Dr. Jannine Krause:
Website: doctorjkrausend.com
Instagram: @drjanninekrause

Nov 3, 2025 • 58min
4 Kids, Endless Symptoms, and No Answers...Until FDN w/ Vanessa Roush
Vanessa Roush is a tenacious health advocate, FDNP, and mother of four. She shares with us her powerful journey through self-healing and mindset transformation.
From battling chronic health issues and conventional medical dead-ends to discovering Functional Diagnostic Nutrition (FDN), Vanessa's story is a testament to resilience and the power of perspective.
If you're ready to hear how someone turned adversity into advantage, you're going to love this episode.
You'll Learn:
- How Vanessa overcame chronic health issues like migraines, hormonal imbalances, and fatigue
- The truth about the power of mindset in achieving health
- Why small daily actions can compound to yield tremendous health results
- Why Vanessa's passion for helping others is making a massive impact
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Vanessa Roush:
Website: roushfunctionalhealth.com
Instagram: @roushfunctionalhealth

Oct 30, 2025 • 50min
How To Rebuild Your Health While Building A Business w/ Kailey Campos
Join Kailey Campos, a Functional Diagnostic Nutrition Practitioner and founder of re’nud holistics, as she delves into the synergy between entrepreneurship and health transformation.
Discover how to navigate the discomfort that accompanies change, the importance of personalized healing tools, and the role of nervous system regulation. Kailey emphasizes the importance of finding your unique path to sustainable health and shares personalized strategies rooted in functional lab testing and holistic approaches.
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Kailey Campos:
Website: renudholistics.com
Instagram: @renud.holistics
TikTok: @_kaileyyyrose

Oct 27, 2025 • 58min
Saving Our Children - A Chat with the President of Weston A. Price w/ Sally Fallon Morell
Have you ever felt like everything we’re taught about health is backwards? Especially for those of us who have healed from chronic illnesses, it can often seem like we had to do the exact OPPOSITE of what conventional wisdom teaches for us to truly heal. How did we get here, and how can we fix it for our future generations?
In this podcast episode, we are talking to Sally Fallon Morell, President of the Weston A. Price Foundation. The Weston A. Price foundation is filled with bold and fearless leaders from all walks of life who believe that real food is the secret to a truly healthy body.
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Sally Fallon Morell:
Website: westonaprice.org
Instagram: @westonaprice
Website: nourishingtraditions.com
Website: realmilk.com

Oct 23, 2025 • 1h 2min
The Truth About Tick-Borne Infections: What Your Doctor Might Miss w/ Jennifer Lanie
The ugly truth behind tick-borne infections is what FDN Practitioner Jennifer Lanie dives into on this episode.
The average person who is even somewhat aware of tick-borne infections may think of things like Lyme Disease, and assume that a simple round of antibiotics can get things fixed up. For too many people, though, this is NOT the case, and much deeper work is needed to help them.
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Jennifer Lanie:
Website: thegetbettergirl.com
Instagram: @thegetbettergirl
Free Low-Inflammatory Guide: gbgsendmyguide

Oct 20, 2025 • 42min
Thriving in Midlife: Taking Back the Driver’s Seat w/ Claudine Francois
Claudine François is a Board-Certified Functional Medicine & Holistic Health Practitioner, FDN practitioner, author, and the creator of The Midlife Body Code Method.
A former CFO turned root-cause detective, she helps driven women 40+ uncover the hidden causes of exhaustion, brain fog, hormone shifts, and stubborn weight. Her new book, Your Midlife Body Code, empowers women to decode their symptoms, realign with their bodies, and reclaim lasting energy, clarity, and confidence in midlife and beyond.
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Claudine Francois:
Website: ingoodcleantaste.com
Instagram: @claudine.r.francois
Facebook: @ingoodcleantaste
YouTube: @claudinefrancois1026
LinkedIn: @claudine-francois-6314461
Claudine's Book: Your Midlife Body Code

Oct 16, 2025 • 56min
GLP-1s: Miracle or Mistake? w/ Jennifer Woodward
GLP-1s (like Ozempic and Wegovy) are being called the biggest breakthrough in modern weight loss…
But are they really a miracle for women in midlife — or could they turn out to be a major mistake?
In today’s brand-new podcast episode, we’re cutting through the hype and asking the hard questions with a much-loved guest and FDN practitioner, Jennifer Woodward.
Want to watch this episode on YouTube? Click here. Subscribe if you'd like to catch all new episodes live and participate with our guests directly.
Want to learn more about becoming an FDN? Go to fdntraining.com/resources to get our best free workshops and mini-courses!
Where to find Jennifer Woodward:
Website: jenniferwoodwardnutrition.com
Instagram: @jenniferwoodwardnutrition
Facebook: @jenniferwoodwardFDNP

Oct 13, 2025 • 56min
Anxiety/Depression/Eating Disorder and Amino Acid Therapy w/ Laurie Hammer
Laurie Hammer, a Functional Nutritional Therapist and Neuro-Nutrient Specialist, candidly recounts her journey through anxiety, depression, and eating disorders. She highlights how amino acid therapy played a transformative role in her recovery. Listeners learn about the connection between neurotransmitters and emotional health, the importance of addressing inflammation, and the role of symptom assessments in therapy. Laurie shares impressive success stories, including clients tapering off multiple medications, making a strong case for the power of holistic healing.


