Episode 432: Kris Gethin: The Natural Blueprint for Building Muscle After 40
Explicit content warning
03/14/25 • 18 min
Can you build muscle naturally as you age?
In this week’s Fitness Friday episode, I talk with fitness expert Kris Gethin, as he reveals that declining testosterone may be the hidden culprit behind your struggle to maintain muscle mass after 40. Most middle-aged fitness enthusiasts who maintain impressive physiques rely heavily on hormone replacement therapy (HRT), but Kris shares a completely natural approach that works.
We discuss surprising testosterone-killers lurking in your daily environment—from cooking with Teflon to the metal fillings in your teeth—and provide practical, scientifically-backed strategies to boost your hormone production naturally. We also dive into cutting-edge biohacking techniques like red light therapy, ice baths, and even how dental work dramatically improved Kris's own hormone levels after suffering from long COVID.
Kris Gethin, a renowned transformation expert and entrepreneur, has revolutionized the fitness industry with his no-nonsense, results-driven approach to bodybuilding and coaching. As the founder of Unmatched Supps and former CEO of Kaged Muscle, he has established himself as a pioneering force in the supplement industry while developing the innovative DTP (Dramatic Transformation Principle) training method. Through his podcast, he shares evidence-based fitness insights with a global audience, drawing from his extensive experience coaching elite athletes and celebrities.
What we discuss:
- Natural testosterone optimization vs. HRT dependency
- Environmental testosterone killers
- Compound exercises that stimulate hormone production
- Red light therapy benefits and application techniques
- How ice baths and saunas can elevate testosterone levels
- Unexpected connection between dental health and hormone production
- Natural alternatives to Ozempic and GLP-1 medications for fat loss
- Supplements that support testosterone (vitamin D with K2, creatine, progesterone, DHEA)
- Blood sugar stabilization techniques for maintaining muscle and losing fat
Thank you to our sponsor:
Therasage: Head over to therasage.com and use code Be Bold for 15% off
TruNiagen: Head over to truniagen.com and use code HUSTLE20 to get $20 off any purchase over $100.
Magic Mind: Head over to www.magicmind.com/jen and use code Jen at checkout.
Air Doctor: Go to airdoctorpro.com and use promo code HUSTLE for up to $300 off and a 3-year warranty on air purifiers.
Bio.me: Link to daily prebiotic fiber here, code Jennifer20 for 20% off.
Momentous: Shop this link and use code Jen for 20% off
To learn more about Kris Gethin:
Website: https://www.krisgethin.com/
Instagram: https://www.instagram.com/krisgethin/
Youtube: https://www.youtube.com/krisgethin
Find more from Jen:
Website: https://www.jennifercohen.com/
Instagram: @therealjencohen
Books: https://www.jennifercohen.com/books
Speaking: https://www.jennifercohen.com/speaking-engagements
Can you build muscle naturally as you age?
In this week’s Fitness Friday episode, I talk with fitness expert Kris Gethin, as he reveals that declining testosterone may be the hidden culprit behind your struggle to maintain muscle mass after 40. Most middle-aged fitness enthusiasts who maintain impressive physiques rely heavily on hormone replacement therapy (HRT), but Kris shares a completely natural approach that works.
We discuss surprising testosterone-killers lurking in your daily environment—from cooking with Teflon to the metal fillings in your teeth—and provide practical, scientifically-backed strategies to boost your hormone production naturally. We also dive into cutting-edge biohacking techniques like red light therapy, ice baths, and even how dental work dramatically improved Kris's own hormone levels after suffering from long COVID.
Kris Gethin, a renowned transformation expert and entrepreneur, has revolutionized the fitness industry with his no-nonsense, results-driven approach to bodybuilding and coaching. As the founder of Unmatched Supps and former CEO of Kaged Muscle, he has established himself as a pioneering force in the supplement industry while developing the innovative DTP (Dramatic Transformation Principle) training method. Through his podcast, he shares evidence-based fitness insights with a global audience, drawing from his extensive experience coaching elite athletes and celebrities.
What we discuss:
- Natural testosterone optimization vs. HRT dependency
- Environmental testosterone killers
- Compound exercises that stimulate hormone production
- Red light therapy benefits and application techniques
- How ice baths and saunas can elevate testosterone levels
- Unexpected connection between dental health and hormone production
- Natural alternatives to Ozempic and GLP-1 medications for fat loss
- Supplements that support testosterone (vitamin D with K2, creatine, progesterone, DHEA)
- Blood sugar stabilization techniques for maintaining muscle and losing fat
Thank you to our sponsor:
Therasage: Head over to therasage.com and use code Be Bold for 15% off
TruNiagen: Head over to truniagen.com and use code HUSTLE20 to get $20 off any purchase over $100.
Magic Mind: Head over to www.magicmind.com/jen and use code Jen at checkout.
Air Doctor: Go to airdoctorpro.com and use promo code HUSTLE for up to $300 off and a 3-year warranty on air purifiers.
Bio.me: Link to daily prebiotic fiber here, code Jennifer20 for 20% off.
Momentous: Shop this link and use code Jen for 20% off
To learn more about Kris Gethin:
Website: https://www.krisgethin.com/
Instagram: https://www.instagram.com/krisgethin/
Youtube: https://www.youtube.com/krisgethin
Find more from Jen:
Website: https://www.jennifercohen.com/
Instagram: @therealjencohen
Books: https://www.jennifercohen.com/books
Speaking: https://www.jennifercohen.com/speaking-engagements
Previous Episode
Episode 431: Dr. Andy Galpin: Why Fitness Trackers and Bloodwork Are Misleading You
Are you optimizing your performance or leaving gains on the table? In this week's Habits and Hustle podcast episode, I sit down with Dr. Andy Galpin, a renowned human performance scientist, to discuss the science behind optimizing physical and mental performance.
We dive into how the body actually works versus common fitness misconceptions, why basic blood work often misses the bigger picture, and reveal why many people's obsession with fitness data and tracking might be counterproductive. We cover everything from individualized training approaches to the science of sleep, recovery, and performance optimization. So tune in because Galpin shares insights from his work with elite athletes while making the science accessible for everyday fitness enthusiasts.
Dr. Andy Galpin PhD is a tenured full Professor at California State University, Fullerton. He is the Co-Director of the Center for Sport Performance and Founder/Director of the Biochemistry and Molecular Exercise Physiology Laboratory. He is a Human Performance scientist with a PhD in Human Bioenergetics and over 100 peer-reviewed publications and presentations.
What We Discuss:
(01:00) High-Performance Science and Genetics
(10:22) Comprehensive Testing for Optimal Health
(15:05) Optimizing Performance With Blood Analysis
(21:29) Physiology and Stress Impact Testosterone
(31:18) Balancing Stress and Performance
(42:33) Improving Performance Beyond Physical Metrics
(46:13) Navigating the Biohacking Industry
(01:07:36) Overcoming Training Plateaus and Progression
(01:18:20) Uncovering Sleep Disorders and Solutions
...and more!
Thank you to our sponsors:
Therasage: Head over to therasage.com and use code Be Bold for 15% off
TruNiagen: Head over to truniagen.com and use code HUSTLE20 to get $20 off any purchase over $100.
Magic Mind: Head over to www.magicmind.com/jen and use code Jen at checkout.
Air Doctor: Go to airdoctorpro.com and use promo code HUSTLE for up to $300 off and a 3-year warranty on air purifiers.
Bio.me: Link to daily prebiotic fiber here, code Jennifer20 for 20% off.
Momentous: Shop this link and use code Jen for 20% off
Find more from Jen:
Website: https://www.jennifercohen.com/
Instagram: @therealjencohen
Books: https://www.jennifercohen.com/books
Speaking: https://www.jennifercohen.com/speaking-engagement
Find more from Dr. Andy Galpin:
Website: https://www.andygalpin.com/
Podcast: Perform
Instagram: @drandygalpin
Next Episode
Episode 433: Dr. Andy Galpin: Forget Diet Trends - Simple Nutrition Principles That Actually Work
Ever wonder what a world-class performance specialist eats to fuel his day? You might be surprised to learn it includes wild game like elk, deer, and yes, even bear meat! In this episode of Habits and Hustle, I talk with Dr. Andy Galpin, a leading expert in human performance who works with elite athletes across multiple sports.
Dr. Galpin cuts through the noise of trendy diets to share fundamental nutrition principles that drive performance. We dive into why calorie balance, whole foods, and adequate protein (about 1g per pound of bodyweight) matter more than following any specific eating schedule. We also discuss hunting, eating bear meat, and how nutrition needs differ based on activity. Overall, Dr. Galpin emphasizes individualization, finding what works for your specific body, goals, and lifestyle rather than following one-size-fits-all approaches.
Dr. Andy Galpin PhD is a tenured full Professor at California State University, Fullerton. He is the Co-Director of the Center for Sport Performance and Founder/Director of the Biochemistry and Molecular Exercise Physiology Laboratory. He is a Human Performance scientist with a PhD in Human Bioenergetics and over 100 peer-reviewed publications and presentations.
What We Discuss:
(01:01) Optimal Nutrition for High Performance
(10:11) Protein Intake and Wild Game Consumption
(21:03) Impact of Blending on Digestion
(25:22) Importance of Fiber Intake and Supplements
(33:11) Understanding the Impact of Supplements
(44:19) Magnesium Supplements and Nutrition Insights
(52:30) Antioxidants, Supplementation, and Coaching Program
(01:03:12) Daily Routine and Coaching Philosophy
...and more!
Thank you to our sponsors:
Therasage: Head over to therasage.com and use code Be Bold for 15% off
TruNiagen: Head over to truniagen.com and use code HUSTLE20 to get $20 off any purchase over $100.
Magic Mind: Head over to www.magicmind.com/jen and use code Jen at checkout.
Air Doctor: Go to airdoctorpro.com and use promo code HUSTLE for up to $300 off and a 3-year warranty on air purifiers.
Bio.me: Link to daily prebiotic fiber here, code Jennifer20 for 20% off.
Momentous: Shop this link and use code Jen for 20% off
Find more from Jen:
Website: https://www.jennifercohen.com/
Instagram: @therealjencohen
Books: https://www.jennifercohen.com/books
Speaking: https://www.jennifercohen.com/speaking-engagement
Find more from Dr. Andy Galpin:
Website: https://www.andygalpin.com/
Podcast: Perform
Instagram: @drandygalpin
If you like this episode you’ll love
Episode Comments
Generate a badge
Get a badge for your website that links back to this episode
<a href="https://goodpods.com/podcasts/habits-and-hustle-40301/episode-432-kris-gethin-the-natural-blueprint-for-building-muscle-afte-87374028"> <img src="https://storage.googleapis.com/goodpods-images-bucket/badges/generic-badge-1.svg" alt="listen to episode 432: kris gethin: the natural blueprint for building muscle after 40 on goodpods" style="width: 225px" /> </a>
Copy