The Dr. Layne Norton Podcast

In this episode, I sit down with Dr. Joey Munoz – nutrition PhD, science communicator, and former Team Biolayne coach. We have a wide-ranging conversation on building a career in this space, science communication, and the lessons fitness teaches beyond the gym.
We talk about Joey’s path from undergrad to PhD to full-time influencer, the realities of starting social media, why muscle is freedom (especially as we age), leading by example as a parent, content strategy, changing eating behaviors, resilience, and what it actually takes to build a business in fitness.

SPONSORS
• Outwork Nutrition - Evidence-Based Supplements to Support Your Hard Work: https://outworknutrition.com
• Carbon Diet Coach – 14 day free trial: https://joincarbon.com/podcast

LAYNE'S COMPANIES
Carbon Diet Coach: https://joincarbon.com/podcast
Outwork Nutrition: https://outworknutrition.com
REPS Research Review: https://biolayne.com/reps
Workout Builder: https://biolayne.com/workout-builder
Team Biolayne: https://biolayne.com/online-coaching
Physique Coaching Academy: https://physiquecoachingacademy.com

FOLLOW LAYNE
http://www.facebook.com/laynenorton
http://www.twitter.com/biolayne
http://www.instagram.com/biolayne

TIMESTAMPS
0:00:00 - Intro
0:02:03 - Joey’s Path to a PhD
0:05:59 - Starting Social Media
0:09:42 - Research Skills & High Standards
0:14:47 - Parenting & Leading by Example
0:17:43 - Muscle Is Freedom
0:22:19 - Working With Older Clients
0:25:17 - Science Communication
0:31:09 - Content Strategy
1:13:10 - Changing Eating Behaviors
1:15:32 - Resilience & Adversity
1:30:11 - Vision vs. Execution
1:44:11 - Where to Find Joey

SHOW NOTES
https://biolayne.com/podcasts/dr-layne-norton-podcast/science-strength-and-social-media-with-dr-joey-munoz-episode-40/

Is insulin really the root cause of fat gain? Or has the carbohydrate-insulin model of obesity been oversold?
In this episode, Dr. Layne Norton breaks down what insulin actually does in the body, why short-term biochemistry snapshots don’t tell the whole story, and what the highest-quality human evidence really shows about low-carb vs. low-fat diets when calories and protein are controlled.
We cover metabolic ward trials, meta-analyses of controlled feeding studies, overfeeding research, and why GLP-1 drugs (which increase meal insulin) produce massive fat loss. Spoiler: insulin is not a wizard that can violate thermodynamics.
#Insulin #LowCarb #Obesity #CarbohydrateInsulinModel #LayneNorton #EvidenceBased #FatLoss #NutritionScience #KevinHall #DIETFITS #GLP1 #Semaglutide #Tirzepatide

SPONSORS
• Carbon Diet Coach – 14 day free trial: https://joincarbon.com/podcast
• Team Biolayne – One-On-One Coaching: https://biolayne.com/online-coaching

LAYNE'S COMPANIES
Carbon Diet Coach: https://joincarbon.com/podcast
Outwork Nutrition: https://outworknutrition.com
REPS Research Review: https://biolayne.com/reps
Workout Builder: https://biolayne.com/workout-builder
Team Biolayne: https://biolayne.com/online-coaching
Physique Coaching Academy: https://physiquecoachingacademy.com

FOLLOW LAYNE
http://www.facebook.com/laynenorton
http://www.twitter.com/biolayne
http://www.instagram.com/biolayne

TIMESTAMPS
0:00:00 - Intro
0:02:43 - What is Insulin
0:07:26 - Insulin and Fat Tissue
0:11:02 - Carbohydrate Insulin Model of Obesity
0:15:08 - Carbon Diet Coach
0:16:09 - What the Evidence Shows
0:31:58 - Team Biolayne
0:32:49 - Overfeeding
0:37:52 - Population Studies
0:43:05 - GLP1 Agonists
0:45:09 - Mechanisms
0:48:35 - Type 2 Diabetes
0:50:24 - Ludwig Study
0:52:41 - Misc Arguments
0:55:18 - Summary

SHOW NOTES
https://biolayne.com/podcasts/dr-layne-norton-podcast/insulin-an-undeserved-bad-reputation-episode-39/

In the latest episode of his Overrated/Underrated series, Dr. Layne Norton ranks the habits, markers, and gadgets the longevity and biohacker crowd won’t stop talking about. No hype. No bro-science. Just what the data actually says about what predicts a longer life, and what has been oversold as a hack.
Topics covered: VO2 max, grip strength, cold plunges, sauna, sleep trackers, muscle mass, fasting, biological age tests, and more!
Tune in for evidence-based analysis and practical tips on what actually moves the needle for better health and longevity.
#LayneNorton #Biolayne #Longevity #Biohacking

SPONSORS
• David Protein - Buy 4 cartons, get 1 FREE at: https://davidprotein.com/pages/layne
• Team Biolayne – One-On-One Coaching: https://biolayne.com/online-coaching

LAYNE'S COMPANIES
Carbon Diet Coach: https://joincarbon.com/podcast
Outwork Nutrition: https://outworknutrition.com
REPS Research Review: https://biolayne.com/reps
Workout Builder: https://biolayne.com/workout-builder
Team Biolayne: https://biolayne.com/online-coaching
Physique Coaching Academy: https://physiquecoachingacademy.com

FOLLOW LAYNE
http://www.facebook.com/laynenorton
http://www.twitter.com/biolayne
http://www.instagram.com/biolayne

TIMESTAMPS
0:00:00 - Intro
0:00:49 - V02 Max
0:02:16 - Grip Strength
0:04:08 - Muscle Mass
0:05:24 - 10k Steps Per Day
0:06:16 - David Protein Promo
0:08:23 - Zone 2 Cardio
0:09:00 - Cold Plunges
0:11:20 - Sauna
0:11:59 - Sleep Trackers
0:13:39 - Fasting
0:15:38 - Calorie Restriction
0:18:07 - Biolayne Coaching Promo
0:19:05 - Biological Age Tests
0:20:06 - Full Body MRI
0:22:10 - ApoB
0:24:52 - Annual Bloodwork
0:26:03 - Stress Management
0:29:44 - Outro

SHOW NOTES
https://biolayne.com/podcasts/dr-layne-norton-podcast/overrated-underrated-longevity-biohacking-episode-38/

Detoxes. Seed oils. Cortisol making you fat. Artificial sweeteners causing weight gain. Insulin as the root of obesity. Hormones as the master switch for fat loss.
These ideas keep spreading — even among smart, educated people who should know better. In this episode, Dr. Layne Norton explains why.
This is not just another myth-busting list. It’s a breakdown of the psychology, incentives, and media dynamics that make fitness misinformation so sticky. Layne covers why the human brain was not built for science, why anecdotes beat statistics, why fear sells better than nuance, how algorithms reward certainty and outrage, and why intelligence does not protect you from bias.
You’ll also get a practical toolkit for evaluating claims: what questions to ask, which red flags matter, how the hierarchy of evidence actually works, and why the “big rocks” of health still outperform the latest viral villain.
If you’ve ever wondered why bad fitness ideas travel faster than good evidence, this episode is the map.
#LayneNorton #FitnessMisinformation #EvidenceBasedFitness #NutritionScience #Biolayne #SeedOils #ArtificialSweeteners #CriticalThinking #HealthMyths #DrLayneNortonPodcast

SPONSORS
• REPS Research Review: https://biolayne.com/reps
• Team Biolayne – One-On-One Coaching: https://biolayne.com/online-coaching

LAYNE'S COMPANIES
Carbon Diet Coach: https://joincarbon.com/podcast
Outwork Nutrition: https://outworknutrition.com
REPS Research Review: https://biolayne.com/reps
Workout Builder: https://biolayne.com/workout-builder
Team Biolayne: https://biolayne.com/online-coaching
Physique Coaching Academy: https://physiquecoachingacademy.com

FOLLOW LAYNE
http://www.facebook.com/laynenorton
http://www.twitter.com/biolayne
http://www.instagram.com/biolayne

TIMESTAMPS
0:00:00 - Intro
0:01:37 - The Misinformation Epidemic
0:08:14 - Human Brains Were Not Designed For Science
0:26:01 - The Power of Anecdotes
0:36:17 - Fear as a Marketing Tool
0:41:04 - Social Media and the Algorithm
0:48:01 - Why Smart People are Vulnerable
0:58:30 - The Business of Misinformation
1:03:16 - How Science Actually Works
1:08:48 - A Toolkit for Evaluating Claims
1:15:20 - Conclusion: The Big Rocks Matter Most
1:17:28 - Outro

SHOW NOTES
https://biolayne.com/podcasts/dr-layne-norton-podcast/the-science-of-fitness-misinformation-why-smart-people-believe-dumb-things-episode-37

In this listener Q&A, Dr. Layne Norton answers your most-asked questions on training, fat loss, genetics, recovery, and how to cut through the noise — with his kitten Wheezy as co-host.
Topics covered in this episode:
• Training to failure — is it more important for advanced lifters than beginners?
• Muscle confusion — why constantly changing exercises creates the illusion of progress (and how much variety is actually useful)
• Muscle mass and longevity — is there a point where more muscle stops helping, and why extreme muscularity can look like a U-shaped curve
• “I barely eat anything but I’m not losing weight” — why feelings aren’t data, food volume vs calorie density, and why one week of tracking changes everything
• Ultra-processed foods — do they cause more fat gain than minimally processed foods when calories are matched?
• Metabolic adaptation — how reversible is it, what’s transient vs what’s tied to lost lean mass, and what happens if you stay at the new body weight
• How to know who to trust — look for nuance, people who change their minds, logical consistency, and those who haven’t made a diet their identity
• Smartwatch recovery scores & HRV — why you should not change your training based on a single day’s number
• “Do I have bad genetics?” — Layne’s 10-year answer, chicken-leg-to-world-record-squat story, and the motto “let’s find out”
• What Layne loves (and hates) most about his job
And more!
Whether you’re stuck on fat loss, second-guessing your program, or tired of conflicting advice, this episode gives practical, no-BS takeaways you can use.
#BioLayne #LayneNorton #QandA #AMA #EvidenceBasedNutrition #TrainingToFailure #MetabolicAdaptation #FatLoss #MuscleBuilding #Genetics #HRV

SPONSORS
• Physique Coaching Academy - Advanced Coaching and Nutrition Education for Personal Trainers: https://physiquecoachingacademy.com
• Workout Builder – Customized training programs for all experience levels: https://biolayne.com/workout-builder

LAYNE'S COMPANIES
Carbon Diet Coach: https://joincarbon.com/podcast
Outwork Nutrition: https://outworknutrition.com
REPS Research Review: https://biolayne.com/reps
Workout Builder: https://biolayne.com/workout-builder
Team Biolayne: https://biolayne.com/online-coaching
Physique Coaching Academy: https://physiquecoachingacademy.com

FOLLOW LAYNE
http://www.facebook.com/laynenorton
http://www.twitter.com/biolayne
http://www.instagram.com/biolayne

TIMESTAMPS
0:00:00 - Intro
0:00:55 - Training to Failure
0:02:58 - Muscle Confusion
0:05:06 - Muscle Mass for Longevity
0:07:05 - Physique Coaching Academy
0:08:06 - Hard Time Losing Weight
0:09:48 - Processed Food
0:11:24 - Metabolic Adaptation
0:12:58 - Who to Trust
0:18:55 - Wearables
0:21:13 - Workout Builder
0:22:08 - Good Genetics
0:27:02 - Love/Hate Most About My Job
0:30:17 - Training Evolution
0:32:55 - Quitting vs Letting Go
0:35:55 - Outro

SHOW NOTES
https://biolayne.com/podcasts/dr-layne-norton-podcast/ama-06-weight-loss-genetics-muscle-confusion-who-to-trust-and-more-episode-36