Episodios

  • Blood Flow Restriction Training with Jeremy Loenneke

    Blood Flow Restriction Training with Jeremy Loenneke
    Apr 13 2026

    In this episode, Dr. Layne Norton interviews Professor Jeremy Loenneke — one of the world’s top researchers on blood flow restriction training. They break down how BFR actually works, why metabolite accumulation appears to be the primary driver of its muscle-building effects, practical self-application techniques, and whether expensive cuffs are even necessary.

    Jeremy also shares his latest thinking on the hypertrophy vs. strength relationship, why muscle may be an underrated health marker (just like fat once was), his biggest concerns about the replication crisis in exercise science, and how he responds to critics who call BFR “gimmicky.”

    Whether you’re an athlete chasing gains, a coach, or just training smarter, this is a must-listen deep dive into the science and real-world application of BFR.

    SPONSORS

    • Workout Builder – Customized training programs for all experience levels: https://biolayne.com/workout-builder

    • 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

    0:05:27 - Background on BFR

    0:12:30 - BFR Effects

    0:18:38 - BFR Protocols

    0:23:18 - Workout Builder

    0:24:14 - Preferences = Consistency

    0:28:36 - BFR and Injuries

    0:31:39 - BFR vs Regular Training

    0:41:57 - Mechanisms

    1:04:51 - Team Biolayne

    1:05:43 - Training to Failure

    1:10:50 - Don’t Get Stuck in the Details

    1:16:35 - BFR Safety

    1:20:41 - Recommendations to Start

    1:27:30 - Strength vs Hypertrophy

    1:49:58 - Study Design & Replication

    2:04:14 - Final Question

    2:15:52 - Outro

    SHOW NOTES

    https://biolayne.com/podcasts/dr-layne-norton-podcast/
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    2 h y 19 m
  • The Most Overhyped Supplements of All Time

    The Most Overhyped Supplements of All Time
    Mar 30 2026

    It’s here—the last episode of Dr. Layne Norton’s no-nonsense supplement series! In this finale, Layne takes a hard, evidence-based look at some of the most overhyped supplements in fitness and bodybuilding. He cuts through the marketing claims, examines the actual research, and tells you exactly what works, what doesn’t, and who (if anyone) should actually be spending money on these products.

    In this episode, Layne covers:

    • BCAAs – Do they build muscle, boost strength, or speed recovery more than just eating enough total protein?
    • HMB – Why the “like deca” claims from the ’90s never panned out, and what it actually does (and doesn’t) do
    • Glutamine & Arginine – Poor bioavailability, gut-first metabolism, and why they rarely deliver the muscle-building or performance benefits promised
    • Ecdysterone & Turkesterone – The “natural steroid” hype meets high-quality human RCTs
    • Electrolytes – When they actually matter (and when plain water is sufficient)
    • “Better” Creatine forms (CEE, buffered creatine, HCl, etc.) vs. good old Creatine Monohydrate – spoiler: you’re usually just paying 2–4× more for the same (or worse) results

    Layne breaks down the bold claims vs. reality for each supplement, explains what the science shows they actually do in the body, and identifies the very narrow populations who might see real benefit.

    Stop wasting money on supplements that underdeliver. Focus on what actually moves the needle.

    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

    0:03:10 - BCAAs

    0:11:38 - HMB

    0:19:46 - Glutamine

    0:24:56 - Arginine

    0:31:10 - Ecdysterone and Turkesterone

    0:34:18 - Electrolytes

    0:42:32 - Alternate Forms of Creatine

    0:51:03 - Honorable Mentions

    0:55:42 - Outro

    SHOW NOTES

    https://biolayne.com/podcasts/dr-layne-norton-podcast/the-most-overhyped-supplements-of-all-time-episode-24
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    56 m
  • Supplement Series: Tier 2

    Supplement Series: Tier 2
    Mar 16 2026
    The Dr. Layne Norton Podcast is back with Part 2 of the highly anticipated Supplement Series! In Episode 23, Layne dives deep into his Tier 2 supplements — the ones with solid (but not quite elite) evidence for supporting strength, power, endurance, recovery, body composition, stress management, sleep, and overall training performance.Building on the Tier 1 foundations from Episode 22 (creatine, whey protein, and caffeine), Layne breaks down the science, mechanisms, optimal dosing, timing, safety profiles, and real-world takeaways for these promising options. No hype, just evidence-based insights to help you decide what's worth adding to your stack.In this episode, Layne covers:Ashwagandha — Boosts strength, lean mass, testosterone, recovery, sleep, and stress management as a powerful adaptogen.Betaine (Trimethylglycine) — Potential improvements in body composition, strength, power output, and recovery.Rhodiola Rosea — Enhances resistance training performance, endurance, VO2 max, fatigue resistance, recovery, and cognition.Citrulline (including Citrulline Malate) — Increases muscular endurance, reps to failure, nitric oxide production, and reduces fatigue.Beta-Alanine — Buffers acidity for better performance in high-intensity efforts (1–10 minutes), more reps in resistance training.Tart Cherry Extract — Reduces DOMS, speeds strength/power recovery, and lowers inflammation/oxidative stress markers.Melatonin — Improves sleep quality (with indirect benefits for body composition and recovery via better rest).Taurine — Supports endurance, acute power/strength, and recovery from muscle damage/DOMS.Carnitine — Aids recovery, reduces soreness, boosts power/volume, and may enhance high-intensity performance.Magnesium — Benefits exercise performance, recovery, and sleep — especially if you're deficient.Layne references key studies, meta-analyses, practical dosing protocols, side effects to watch for, and who might benefit most.Whether you're chasing PRs, better recovery, or optimized health, this episode cuts through the supplement noise with Layne's no-BS, science-first approach.SPONSORS• Outwork Nutrition - Evidence-Based Supplements to Support Your Hard Work: https://outworknutrition.com• David Protein - Buy 4 cartons, get 1 FREE at: https://davidprotein.com/pages/layneLAYNE'S COMPANIESCarbon Diet Coach: https://joincarbon.com/podcastOutwork Nutrition: https://outworknutrition.comREPS Research Review: https://biolayne.com/repsWorkout Builder: https://biolayne.com/workout-builderTeam Biolayne: https://biolayne.com/online-coachingPhysique Coaching Academy: https://physiquecoachingacademy.comFOLLOW LAYNEhttp://www.facebook.com/laynenortonhttp://www.twitter.com/biolaynehttp://www.instagram.com/biolayneTIMESTAMPS0:00:00 - Intro0:04:05 - Conflict of Interest0:05:17 - Ashwagandha0:13:52 - Outwork Nutrition0:15:28 - Betaine0:20:59 - Rhodiola Rosea0:25:04 - Citrulline0:30:46 - David Protein0:32:21 - Beta-Alanine0:37:26 - Tart Cherry0:42:18 - Melatonin0:45:24 - Taurine0:47:24 - L-Carnitine0:51:35 - Magnesium0:54:34 - OutroSHOW NOTEShttps://biolayne.com/podcasts/dr-layne-norton-podcast/supplement-series-tier-2-episode-23
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    56 m
  • Supplement Series: Tier 1

    Supplement Series: Tier 1
    Mar 2 2026
    The Dr. Layne Norton Podcast is back with the start of a brand-new Supplement Series! In Episode 22, Layne kicks things off by diving deep into his Tier 1 supplements — the ones with the strongest scientific evidence for real-world benefits in performance, body composition, strength, recovery, and even cognition.This episode covers the true MVPs that Layne considers essential (or close to it) for most people training hard:Creatine Monohydrate — Why it's called the most effective ergogenic aid ever, how it boosts lean mass, strength, repeated sprint/power performance, and even helps cognition (especially under stress like sleep deprivation). We bust myths about kidneys, water retention, and non-responders, plus practical dosing (5 g/day, loading optional).Whey Protein — The gold-standard for hitting leucine thresholds and maximizing muscle protein synthesis. How it supports lean mass gains, preserves muscle in a deficit, improves recovery and training volume over time — and why total daily protein matters way more than perfect timing.Caffeine — One of the most reliable acute performance boosters out there. It cranks up strength, power, endurance, repeated sprints, alertness, and reduces perceived effort — especially when fatigued. We cover optimal dosing (3–6 mg/kg), timing, habituation, sleep trade-offs, and who should be cautious.Layne breaks down the mechanisms, key meta-analyses, practical takeaways, dosing/timing strategies, safety profiles, and who might need to be careful with each one. No hype, no BS — just evidence-based insights to help you cut through the supplement noise.SPONSORS• Outwork Nutrition - Evidence-Based Supplements to Support Your Hard Work: https://outworknutrition.com• Carbon Diet Coach – 14 day free trial: https://joincarbon.com/podcastLAYNE'S COMPANIESCarbon Diet Coach: https://joincarbon.com/podcastOutwork Nutrition: https://outworknutrition.comREPS Research Review: https://biolayne.com/repsWorkout Builder: https://biolayne.com/workout-builderTeam Biolayne: https://biolayne.com/online-coachingPhysique Coaching Academy: https://physiquecoachingacademy.comFOLLOW LAYNEhttp://www.facebook.com/laynenortonhttp://www.twitter.com/biolaynehttp://www.instagram.com/biolayneTIMESTAMPS0:00:00 - Intro0:01:24 - Tier 1 Supplement List0:02:25 - Industry Shenanigans0:04:01 - Tier 1 Criteria0:04:56 - Conflicts of Interest0:09:10 - How Creatine Works0:13:09 - Creatine Physical Benefits0:19:55 - Outwork Nutrition0:21:22 - Creatine Physical Benefits Contd.0:23:48 - Creatine Cognitive Benefits0:27:23 - Creatine Safety0:30:51 - Forms of Creatine0:32:18 - How to Take Creatine0:34:15 - Creatine Non-Responders0:35:19 - Misc Considerations0:36:11 - Whey Protein Quality0:38:04 - Muscle Protein Synthesis0:39:09 - Whey Protein Research0:40:00 - Protein Intake0:42:27 - Protein Health and Safety0:43:16 - Forms of Whey Protein0:47:13 - Whey Protein Dosing0:49:05 - Misc Considerations0:50:42 - Carbon Diet Coach0:51:42 - How Caffeine Works0:53:23 - Research Outcomes0:57:03 - Timing/Dosing0:57:30 - Cognitive Effects0:58:06 - Health Considerations0:58:57 - Training Recommendations1:00:44 - More Dosing1:03:11 - Caffeine + Creatine1:04:18 - Misc Considerations1:05:10 - Closing Thoughts1:06:21 - OutroSHOW NOTEShttps://biolayne.com/podcasts/dr-layne-norton-podcast/supplement-series-tier-1-episode-22
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    1 h y 7 m
  • The Science of Muscle Building with James Krieger

    The Science of Muscle Building with James Krieger
    Feb 16 2026

    In this episode, I’m joined by James Krieger, editor of REPS (Research Review for Exercise & Physique Science), to break down what the meta-analyses really say about building muscle.

    We cover:

    • The single most important driver of hypertrophy

    • The dose–response relationship between volume and muscle growth

    • Is there a cap to effective volume?

    • Training to failure: necessary or overrated?

    • Frequency: how often should you train a muscle?

    • Stretch-mediated hypertrophy and long-length partials

    • Why some volume studies appear to “disagree”

    If you’re tired of social media hot takes and want to understand what the totality of evidence actually shows, this episode is for you.

    James and I also discuss how we evaluate research quality and why context matters when interpreting studies, something we do every month inside the issues of REPS, where we break down the latest exercise and physique research so you don’t have to.

    If you want deeper dives into the actual studies discussed in this episode (and many more), check out REPS at https://biolayne.com/reps

    SPONSORS

    • REPS - Research Explained in Practical Summaries: https://biolayne.com/reps

    • 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

    0:02:39 - James Background

    0:04:01 - OG Message Boards

    0:06:24 - Who To Listen To

    0:15:01 - REPS

    0:15:53 - Hypertrophy

    0:26:02 - Compound vs Isolation Movements

    0:33:05 - Subjective Feelings on Training

    0:37:50 - Training Flexibility

    0:43:22 - Training Volume

    0:47:05 - Defining Sets

    0:51:59 - Volume Analysis

    1:02:27 - Research Challenges

    1:08:12 - Workout Builder

    1:09:08 - Study Discrepancies

    1:16:55 - High vs Low Volume

    1:22:40 - Time Constraints

    1:25:15 - Volume Cycling

    1:30:11 - Volume Adaptation

    1:34:37 - Range of Motion

    1:44:35 - What Have You Changed Your Mind On

    1:59:36 - Outro


    SHOW NOTES

    https://biolayne.com/podcasts/dr-layne-norton-podcast/the-science-of-muscle-building-with-james-krieger-episode-21
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    2 h y 1 m
  • Study Deep Dive: Does Aspartame Increase Insulin?

    Study Deep Dive: Does Aspartame Increase Insulin?
    Feb 2 2026

    In this episode, Layne Norton, PhD, dissects the landmark 2025 systematic review & meta-analysis in Advances in Nutrition: "The Effects of Aspartame on Glucose, Insulin, and Appetite-Regulating Hormone Responses in Humans". (PMID: 40381807)

    This episode is perfect if you've heard claims like "diet soda spikes insulin," "artificial sweeteners cause diabetes," or "aspartame is toxic" — Layne uses this gold-standard review to separate science from fear-mongering.

    If you're into evidence-based nutrition, skeptical of viral health scares, or just want to know if your Diet Coke habit is secretly wrecking your metabolism — this episode has the receipts.

    Subscribe for more deep-dive breakdowns of the latest research, and drop a comment: Do you use aspartame? Has this changed your view?

    SPONSORS

    • Outwork Nutrition - Evidence-Based Supplements to Support Your Hard Work: https://outworknutrition.com

    • David Protein - Buy 4 cartons, get 1 FREE at: https://davidprotein.com/pages/layne

    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

    0:02:53 - What is Aspartame

    0:05:15 - Health Claims

    0:11:26 - How Aspartame is Metabolized

    0:14:15 - HRCTs

    0:15:56 - Outwork Nutrition

    0:18:06 - Study Overview

    0:19:25 - Inclusion Criteria

    0:31:43 - Results

    0:40:38 - David Protein

    0:42:13 - Results Cont.

    0:49:51 - Discussion

    0:58:53 - Conclusion


    SHOW NOTES

    https://biolayne.com/podcasts/dr-layne-norton-podcast/study-deep-dive-does-aspartame-increase-insulin-episode-20
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    1 h y 2 m
  • AMA 03 - New Food Guide Pyramid, Calories, Seed Oils, Hypertrophy and More

    AMA 03 - New Food Guide Pyramid, Calories, Seed Oils, Hypertrophy and More
    Jan 19 2026
    In this wide-ranging Q&A episode, I tackle some of the most debated topics in nutrition, training, and health — and separate what the evidence actually shows from what’s just noise.We start with the new food guide pyramid and whether it reflects the current science, then zoom out to look at how the U.S. compares globally in calorie consumption. From there, we dig into protein intake — how much is really needed to support muscle mass and function in healthy adults, and what the best human data actually tells us.I spend a significant portion of the episode unpacking saturated fat, cardiovascular disease, and cholesterol. We walk through randomized trials, systematic reviews, Mendelian randomization data, and mechanistic evidence to explain why LDL and apolipoprotein B matter, how dietary fats influence cardiovascular risk, and why some popular narratives around butter, seed oils, and lipid oxidation don’t hold up when you zoom out to the totality of human evidence.I also answer practical questions on fat loss for people who feel burned out by calorie counting — what to do if tracking feels like a full-time job, where the most reliable calorie data actually comes from, and how to approach weight loss without falling into metabolic myths around insulin, glucose spikes, or arbitrary blood sugar cutoffs.On the training side, we talk about whether the general public should prioritize strength or hypertrophy, what the data says about strength as a predictor of longevity, machines versus free weights, optimal rep ranges for muscle growth, and why different loading schemes can all work when programmed correctly.I address common myths like creatine and hair loss, explain the biomechanics behind sumo versus conventional deadlifts (and why resetting between reps isn’t “cheating”), and share how I personally eat for health while still applying the same evidence-based principles I recommend to others.We wrap up with genetics and obesity — how much your genes matter, whether specific variants should change how you eat, and why most people don’t need genetically tailored macro ratios to make progress.If you’re tired of oversimplified takes, fear-based nutrition advice, and cherry-picked mechanisms, this episode is a deep dive into what the best human research actually says — and how to apply it in the real world.SPONSORS• Team Biolayne – One-On-One Coaching: https://biolayne.com/online-coaching• David Protein - Buy 4 cartons, get 1 FREE at: https://davidprotein.com/pages/layneLAYNE'S COMPANIESCarbon Diet Coach: https://joincarbon.com/podcastOutwork Nutrition: https://outworknutrition.comREPS Research Review: https://biolayne.com/repsWorkout Builder: https://biolayne.com/workout-builderTeam Biolayne: https://biolayne.com/online-coachingPhysique Coaching Academy: https://physiquecoachingacademy.comFOLLOW LAYNEhttp://www.facebook.com/laynenortonhttp://www.twitter.com/biolaynehttp://www.instagram.com/biolayneTIMESTAMPS0:00:00 - Intro0:00:48 - New Food Guide Pyramid0:10:46 - Counting Calories0:15:28 - Biolayne Coaching0:16:19 - Calorie Databases0:17:53 - Strength vs Hypertrophy0:20:16 - Diet for Optimal Health0:25:43 - Addressing Seed Oil Critique0:43:29 - David Bars0:45:03 - Genetics and Obesity0:47:02 - Glucose and Insulin0:50:46 - Machines vs Free Weights0:52:13 - Creatine and Hair Loss0:53:54 - Deadlift Form0:59:42 - Rep Range for Hypertrophy1:02:56 - OutroSHOW NOTEShttps://biolayne.com/podcasts/dr-layne-norton-podcast/ama-03-episode-19
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    1 h y 4 m
  • The Keys to Building Muscle Part 2: NUTRITION

    The Keys to Building Muscle Part 2: NUTRITION
    Jan 5 2026

    Building muscle doesn’t happen in the gym alone. In Part 2 of this series, I break down the nutrition and supplementation variables that actually matter for maximizing muscle growth and which ones are overhyped or misunderstood.

    We start with protein: how much you really need, why protein quality matters, the role of essential amino acids and leucine in stimulating muscle protein synthesis, and how protein distribution across the day can influence results. I also dive into how protein needs change with age, why older adults require higher per-meal and daily protein intakes, and practical recommendations to offset age-related anabolic resistance.

    From there, we cover energy intake: how caloric deficits impair muscle protein synthesis, why massive surpluses don’t accelerate lean mass gains in trained lifters, and how to think about maintenance versus small surpluses depending on training status.

    Finally, I break down the supplements that are actually supported by strong evidence — including creatine and whey protein: what they do, how they work, and how to use them effectively. We also cover common factors that can sabotage muscle growth, like smoking, excessive alcohol, poor sleep, and inappropriate use of NSAIDs or high-dose antioxidants.

    If you want a clear, science-based framework for using nutrition and supplements to support muscle growth, without gimmicks or misinformation, then this episode is for you.

    SPONSORS

    • Carbon Diet Coach – 14 day free trial: https://joincarbon.com/podcast

    • Outwork Nutrition - Evidence-Based Supplements to Support Your Hard Work: https://outworknutrition.com

    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

    0:05:02 - Most Important Thing

    0:05:35 - Protein Structure

    0:07:09 - Protein Digestion

    0:09:55 - Protein RDA

    0:10:40 - Nitrogen Balance

    0:12:24 - Muscle Turnover

    0:14:09 - Amino Acids

    0:19:35 - mTOR

    0:23:12 - Carbon Diet Coach

    0:24:12 - How Much Protein

    0:29:56 - Protein Distribution

    0:39:08 - Protein and Aging

    0:45:04 - Protein Quality

    0:50:50 - Outwork Nutrition

    0:52:17 - Calories

    1:01:23 - Supplements

    1:05:16 - Things to Avoid

    1:13:10 - Outro


    SHOW NOTES

    https://biolayne.com/podcasts/dr-layne-norton-podcast/keys-to-building-muscle-part-2-training-episode-18
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    1 h y 15 m