

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

Dec 22, 2025 • 55min
The Longevity Blueprint: How to Live Younger, Longer w/ Jeffrey Gladden, MD
What if living to 100 wasn’t the goal—what if it was living vibrantly every year along the way?
In this episode, Dr. Jeffrey Gladden, a board-certified interventional cardiologist and founder of Gladden Longevity, uncovers the cutting-edge science behind extending healthspan and optimizing human performance.
Dr. Gladden reveals how biohacking, advanced diagnostics, and personalized medicine are changing the future of aging—and how you can start applying these tools right now to build strength, resilience, and longevity from the inside out.
What you’ll learn:
The difference between lifespan and healthspan—and how to increase both
The role of biohacking and data-driven testing in living younger, longer
Simple strategies to boost recovery, strength, and resilience for decades to come
If you’ve ever wondered how to actually slow aging, this conversation is your blueprint.
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 Jeffrey Gladden, MD:
Website: gladdenlongevity.com
Instagram: @gladdenlongevity

Dec 18, 2025 • 57min
Food Lies Exposed: Why Everything You’ve Been Told About Diet Is Backwards w/ Brian Sanders
Forget everything you think you know about nutrition.
Brian Sanders — filmmaker behind the Food Lies documentary, host of the top-ranked Peak Human podcast, and founder of Austin’s Sapien Center — dismantles decades of misinformation about what we eat.
Brian explains how we’ve been misled by the food industry, why animal foods are actually superfoods, and what the real enemy of human health looks like.
If you’ve tried diet after diet and still feel confused, this conversation will give you the clarity you’ve been searching for.
What you’ll learn:
The truth about “healthy” plant-based marketing vs. ancestral eating
Why animal foods may hold the key to longevity and energy
How to spot the next nutrition fad before it tricks you
The real root cause of modern disease — and how to fight back naturally
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 Brian Sanders:
Website: sapien.org
Instagram: @food.lies
Facebook: @FoodLiesOrg

Dec 15, 2025 • 51min
Why Low Energy Is a Red Flag for Deeper Imbalances w/ Julie James
Are you constantly tired, running on fumes, or wondering why you can’t get your energy back—no matter how much sleep you get? Low energy isn’t just about being busy. It’s often a red flag that something deeper is out of balance in your body.
In this conversation, FDNP Julie James uncovers why low energy connects to so many different health issues—and what you can actually do about it.
What You’ll Learn in This Episode:
Why all of your symptoms are connected—and how they’re cues from your body that it needs help to regain balance.
How functional lab testing reveals what’s really going on inside your body, so you can know where to focus and how to heal.
Why your body is incredibly resilient—and how to use the right tools to support its natural ability to restore balance.
You don’t need to live in a constant state of burnout or exhaustion. With the right insights and strategies, you can feel energized, empowered, and in control of your health again—naturally.
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 Julie James:
Website: wholisticfunctionalhealth.com
Instagram: @wholisticfunctionalhealth
Facebook: @wholisticfunctionalhealthJJ

Dec 11, 2025 • 1h 4min
The Sympathetic Spiral of Doom: How Stress Quietly Destroys Health (and How to Escape It) w/ Dr. Scott Sherr
Most people think stress just makes them tired. But according to Dr. Scott Sherr, it can trigger what he calls the “Sympathetic Spiral of Doom”—a biological feedback loop that silently drains your energy, wrecks your mood, and sabotages your long-term health.
In this live interview, Detective Ev sits down with Dr. Scott Sherr—a Board-Certified Internal Medicine Physician, COO of Troscriptions, and VP of Health Optimization Medicine and Practice—to reveal how modern science and ancient physiology collide in this hidden stress response.
What you’ll discover:
The shocking reason your body can’t recover even when you “de-stress”
How the Sympathetic Spiral of Doom hijacks your nervous system
The cutting-edge framework of Health Optimization Medicine — and how it helps your body function the way it was designed to
Simple, practical ways to break the cycle and restore balance
If you’ve ever felt “off” no matter what you do — this episode will finally explain why.
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. Scott Sherr:
Website: troscriptions.com
Instagram: @troscriptions
Instagram: @drscottsherr
YouTube: @troscriptions

Dec 8, 2025 • 52min
Perimenopause was a Wake-Up Call! w/ Jane Velasco
Imagine this:
You're the go to personal trainer in your area for YEARS, and as far as anyone else is concerned, you're the epitome of what it means to be healthy. What would you do, then, when your own health started to silently decline?
This is exactly what happened to our guest, FDNP Jane Velasco.
In 2019, Jane started experiencing persistent joint pain, debilitating fatigue, insomnia, and unexplained weight gain. After searching for answers, she was finally able to get clarity through functional healthcare.
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 Jane Velasco:
Website: wholisticyou.life
Facebook: @mjcvelasco

Dec 4, 2025 • 1h 18min
The Sleep Tech Trap: Why Wearables, Alcohol & Marijuana Are Sabotaging Your Rest w/ Mollie Eastman
In this eye-opening episode, sleep expert Mollie McGlocklin Eastman—Founder of Sleep Is a Skill and host of the top-rated Sleep Is a Skill Podcast—unpacks what really drives deep, restorative sleep.
Mollie brings a powerful combination of personal experience (including her own battle with insomnia while traveling internationally), a background in behavioral change from The Nonverbal Group, and years of obsessing over chronobiology to help people transform their sleep through technology, accountability, and habit change.
In this episode, you’ll learn:
- Why popular sleep trackers & wearables may be misleading you
- How alcohol, marijuana, and other “sleep aids” disrupt your deep sleep
- Simple, research-backed strategies to improve your sleep—no gadgets needed
- The surprising reason you may be “sleeping enough” but still waking up exhausted
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 Mollie Eastman:
Website: sleepisaskill.com
Instagram: @mollie.eastman
Facebook: @sleepisaskill

Dec 1, 2025 • 1h 8min
What I Learned As An Ultra-Endurance Athlete w/ Lisa Tamati
Join us as we delve into an empowering discussion with globally recognized expert in longevity and health optimization, Lisa Tamati.
- In this episode, Lisa shares her journey from professional ultra-endurance athlete to health and wellness guru, offering invaluable insights on how to become the CEO of your own health and never give up.
- Learn the importance of mindset, the power of resilience, and why it's essential to never outsource your health.
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 Lisa Tamati :
Website: lisatamati.com
Website: aevumlabs.co.nz
Website: longlifehyperbarics.com
Instagram: @lisatamati
Facebook: @lisa.tamati1

Nov 24, 2025 • 55min
What Your Chronic Aches and Pains REALLY Mean w/ Nikki Uvalles
Join FDNP Nikki Uvalles, Integrative Health Coach and founder of One Body Wellness, as she discusses the importance of understanding your body's messages through aches and pains.
- Learn vital lessons about accepting body transitions during aging and nurturing your body as a temple.
- Nikki shares her journey of balancing family life and health, offering insights on how to reconnect with your body, shift your mindset, and adopt holistic practices for lasting vitality.
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 Nikki Uvalles:
Website: onebodywellness.org
Instagram: @one_body_wellness_nikki
Facebook: @OneBodyWellnessNikki

Nov 20, 2025 • 53min
Fix Your Sleep Within 30 Days w/ Brenden Dougherty
Here's a deep dive into understanding and resolving poor sleep quality with Brenden Dougherty, CEO of MDbio.
Discover...
- the essential steps required to diagnose sleep issues
- how to get tested for chronic sleeplessness
- the stringent criteria you should use when selecting supplements.
Learn from Brenden's extensive knowledge in consumer sciences and his commitment to creating effective sleep solutions and supplements. Don't miss out on expert advice aimed at transforming your sleep and overall health.
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 Brenden Dougherty:
Website: mdbiowellness.com
Instagram: @shopmdbio
Website: sleepcorner.com

Nov 17, 2025 • 52min
The Truth About Toxins’ Impact on Our Health w/ Lindsay Dahl
In this episode, Lindsay Dahl, Chief Impact Officer at Ritual and a 20-year environmental health advocate, discusses how toxic chemicals enter our products and supplements, and shares actionable advice for consumers.
Lindsay highlights the real health and environmental threats posed by chemical pollution, teaches listeners how to differentiate between clickbait and scientifically backed information on social media, and provides tips on shopping for safe and effective supplements.
With her extensive experience in environmental health advocacy and policy, Lindsay has helped pass over 30 state and federal laws aimed at reducing toxic chemicals in consumer products. She is also the author of 'Cleaning House: The Fight to Rid our Homes from Toxic Chemicals.'
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 Lindsay Dahl:
Website: lindsaydahl.substack.com
Instagram: @lindsay_dahl
Facebook: @lindsay.k.dahl
LinkedIn: @lindsay-dahl


