• Episode 399: Urolithin A, Mitochondrial Health, and Nutrition for Pro Athletes — Dr. Emily Werner
    Aug 10 2026

    Emily Werner, PhD, RD, CSSD, IFNCP is Team Dietitian for the Philadelphia 76ers (NBA) and Philadelphia Flyers (NHL), and Nutrition Affairs Sport Lead at Timeline.

    Dr. Emily joins Dr. Mike to unpack postbiotics, urolithin A, and why mitochondrial health matters for pro athletes and everyday people alike, digging into the real research behind Timeline's Mitopure and why chasing $200K gadgets rarely beats getting the fundamentals right.

    Expect to learn what a postbiotic actually is and how urolithin A differs from other supplements, why old-school and new-school sports dietitians disagree on peptides and supplement fads, how chronic undereating quietly undermines performance in women's sports, what the current human performance research on urolithin A actually shows, how Mitopure is dosed and why urolithin A can't be reliably food-sourced, and why product quality and manufacturing integrity matter more than marketing claims, and much more.

    Connect with Emily:

    • Website: https://www.eateliteperform.com/
    • Instagram: @emilywerner34
    • LinkedIn: https://www.linkedin.com/in/emily-n-werner-phd-rd-cssd-ifncp-4a820a97/

    Episodes you'll enjoy next:

    • #377 — Methylene Blue for Mitochondria & Performance: Benefits, Dosing & Risks with Dr. Scott Sherr: Listen here
    • #382 — Creatine for Muscle, Bone, Brain & Longevity (Plus Caffeine, Dosing, and Safety) with Dr. Darren Candow: Listen here

    Episode Timestamps:

    2:21 Welcome & introductions
    6:09 What is a postbiotic? Pre-, pro-, and postbiotics explained
    7:09 Urolithin A: the postbiotic behind Mitopure
    8:19 How Emily started consulting for Timeline
    10:11 Old-school vs. new-school sports dietitians on supplements
    13:53 Peptides, anecdata, and why athletes ignore the data
    20:05 The hardest lesson: letting go when clients won't listen
    21:15 Money, ego, and athletes chasing $200K wellness gadgets
    24:53 Chronic undereating in women's sports
    30:48 Nutrition's real job: keeping athletes available to play
    33:19 Inside Mitopure: Timeline's flagship urolithin A product
    35:06 Mitochondria, mitophagy, and why they matter as we age
    38:16 Diet, fasting, and exercise as natural mitophagy triggers
    43:36 What the performance research on urolithin A actually shows
    53:19 Aging, aerobic capacity, and Emily's 101-year-old grandma
    55:40 Mitopure dosing: how much urolithin A and when to take it
    57:14 Why urolithin A can't be food-sourced (and can't be faked)
    1:03:19 Why product quality and integrity matter in supplements

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    1 hr and 10 mins
  • Getting Back to Nutrition Basics: Gut Health, Micronutrients & Training with Zach Moore
    Aug 4 2026

    Zach Moore is a nutrition and exercise coach based in southern Indiana, coaching clients online and in person.

    Zach cuts through the noise of complicated programming and diet protocols to get back to what actually works — minimalist strength training, honest macro-setting, and paying attention to gut health and micronutrient status before chasing anything fancier.

    Expect to learn how to build serious strength with far less training volume than you think, why chasing perfect programming conditions is often a waste of energy, how Zach sets carbohydrate and macro targets for real-world clients, when (and when not) to bother with micronutrient or gut testing, and why micronutrients matter even on restrictive or elimination diets, and much more.

    Connect with Zach:
    Website: zmoore.com
    Instagram: @ZachMFitness

    Episodes you'll enjoy next:

    • #388 — What Vinegar & Lifting Really Do To Your Gut: Listen here
    • #397 — Why Getting Better Never Gets Easier with Cliff Wilson: Listen here

    Episode Timestamps:

    • 02:37 Training in a garage gym during a heat wave
    • 03:53 Grip strength, sweat & cold water immersion
    • 06:32 Overthinking training & lessons from old-time strongmen
    • 09:54 Minimalist strength training & the trap bar deadlift
    • 15:13 Go-to lifts & why you must add muscle for body comp
    • 17:42 Progressive overload & long-term strength gains
    • 19:56 How too much program variety kills progress
    • 27:06 Individualizing & dialing in training volume
    • 30:42 Favorite upper & lower body exercises
    • 35:46 Nutrition foundations: informed eating
    • 38:10 Eating enough to fuel training & recomp
    • 44:06 Determining carb needs & setting client macros
    • 48:13 The insulin myth: do carbs turn into fat?
    • 52:40 Meal balance, fat timing & digestion
    • 55:34 Tracking micronutrients with Cronometer
    • 58:13 Gut testing, carnivore & elimination diets
    • 1:02:25 Sleep tips: circadian rhythm, light & temperature
    • 1:04:39 The Shiftwave chair for stress downregulation & sleep

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 16 mins
  • How elite bodybuilders think about problem-solving, business and nutrition with Coach Cliff Wilson
    Jul 27 2026

    Cliff Wilson is a physique coach with over 16 years of experience working with bodybuilders and physique athletes of every level, including 24 world champions and the current natural bodybuilding world champion.

    Getting better doesn’t make hard things feel easier—it makes you capable of doing more. Cliff Wilson explains the mental skills behind elite physiques, why context beats internet absolutes, and how great coaches turn research, experience, and failure into better decisions.

    Expect to learn why impulse control makes up 20–50% of physique coaching, why you have to learn to dribble before you try to dunk, why practitioners and social media commentators are not the same thing, why getting fitter never makes a true max effort feel easier, how context (not absolutes) explains wildly different carb intakes between world-class physique athletes, why most advanced bodybuilders eventually land back on a bro split, and what separates “collectors” of credentials from coaches who can actually integrate and apply what they know—and much more.

    Connect with Cliff:
    teamwilsonbb.com (book: Becoming Unrivaled)
    Instagram: @cwteamwilson
    Raw Intensity app (mentioned in the episode)

    Episodes you'll enjoy next:
    #323 — Natural vs. Enhanced Bodybuilding: An In-Depth Chat with Aaron Straker: https://flex-diet-podcast.simplecast.com/episodes/episode-323-natural-vs-enhanced-bodybuilding-an-in-depth-chat-with-aaron-straker
    #167 — The Physiologic and Psychologic Benefit of Doing Hard Things: Akshay Nanavati of Fearvana: https://flex-diet-podcast.simplecast.com/episodes/episode-167-the-physiologic-and-psychologic-benefit-of-doing-hard-things-akshay-nanavati-of-fearvana-with-dr-mike-t-nelson

    Episode Timestamps:

    • 02:15 — The edited interview begins and Mike explains the unusual opening
    • 02:49 — Why 20–50% of physique coaching is impulse control
    • 05:19 — Skill levels: learn to dribble before trying to dunk
    • 07:37 — Practitioners vs. social media commentators
    • 10:45 — Why you cannot sidestep the hard parts of fat loss
    • 12:44 — Getting fitter does not make a true max effort feel easier
    • 14:04 — Context beats absolutes: 700 grams vs. 50 grams of carbs
    • 19:26 — Slow thinking, pondering, and turning information into insight
    • 21:57 — Giving clients autonomy dramatically improved results
    • 25:18 — Range, cross-domain learning, and better problem-solving
    • 27:03 — Using OODA loops to make better coaching decisions
    • 28:24 — Why most advanced bodybuilders return to a bro split
    • 31:42 — Low-volume training, outliers, and small-sample traps
    • 44:01 — A surprising DNA result and the role of elite genetics
    • 48:31 — Michael Phelps, elite rituals, and competitive mindset
    • 50:43 — Why bodybuilding coaching skill may have declined
    • 53:11 — Objectivity, Austin Stout, and the traits of great coaches
    • 01:03:14 — Collectors vs. integrators: credentials are not application
    • 01:08:07 — Cliff's Raw Intensity app and upcoming book Becoming Unrivaled

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 15 mins
  • Are Your Peptides Illegal? — Rick Collins — #396
    Jul 22 2026

    Rick Collins, Esq., NSCA-CSCS, is a lawyer who defends the nutrition and fitness community, a partner at Collins Gann McCloskey & Barry PLLC, and General Counsel to the International Society of Sports Nutrition.

    Peptides are everywhere right now, but most of what's sold online as BPC-157 or TB-500 is illegal — and the FDA is about to decide what happens next. Rick breaks down the science, the legal gray market, and why the military's new testosterone screening policy matters too.

    Expect to learn what actually counts as a "peptide," how GLP-1 drugs normalized injectable medications and fueled the gray market, what the FDA's own scientists concluded about BPC-157 and TB-500, why Rick's caseload has shifted from steroids to 80-90% peptide cases, what a possible "experimental peptide" middle-ground category could look like, and what really happens when the FDA raids a peptide seller, and much more.

    Connect with Rick:
    www.RickCollins.com

    Episodes you'll enjoy next:
    #371 — Peptides, TRT, GLPs & Bloodwork: How to Do It Safely (and What Most People Miss) with John Gorman: Listen here
    #319 — Exploring the World of Peptides with Anthony Castore: Listen here

    Episode Timestamps:
    4:07 Rick's background as a lawyer and his standard legal disclaimer
    6:14 What actually counts as a "peptide"
    8:25 How GLP-1 drugs normalized injectable medications
    10:44 Loss of trust in the FDA fuels the gray market
    11:46 The rise of personal health autonomy
    13:40 Two markets: the medical model vs. "bro science"
    16:23 Inside the FDA Compounding Advisory Committee meeting
    19:23 FDA scientists' verdict on BPC-157 and TB-500
    20:49 Why the science on BPC-157 is still so thin
    22:07 Prohibition logic: the black market will keep growing
    25:47 A possible middle ground: an "experimental peptide" category
    32:11 Rick's caseload shift — from steroids to 80-90% peptide cases
    35:30 Why big pharma cares about tirzepatide and retatrutide knockoffs
    42:28 Pete Hegseth and testosterone screening in the military
    46:57 Why the new TRT policy may be "much ado about nothing"
    49:23 Low testosterone's real, well-documented health risks
    52:26 Richard Dawkins, The Selfish Gene, and biohacking against nature
    57:12 The schism between orthodox medicine and biohacking
    62:39 What happens when the FDA raids a peptide seller
    63:30 Connect with Rick Collins

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 8 mins
  • What Coaching Air Force Pilots Taught Me About Real Performance — Sam Brown — #395
    Jul 20 2026

    Samuel Brown, M.Ed., CSCS is a Cognitive Performance Specialist for the U.S. Air Force and a strength and conditioning professional who has worked everywhere from collegiate athletics to elite tactical units.

    Sam spends his days training Air Force pilots and aircrew who run on nicotine, caffeine, and alcohol — and almost never turn off their nervous system. In this episode he reveals why the toughest operators need recovery just as much as intensity, and what years of coaching in Altus, Oklahoma taught him about real performance under extreme cognitive load.

    Expect to learn what Air Force pilots are actually like to train, why the nicotine-caffeine-alcohol "trifecta" dominates military performance culture, how the physical act of flying itself takes a hidden toll through vibration and posture, why sympathetic nervous system domination cements poor posture and movement patterns, how Sam sneaks down-regulation into hard training sessions disguised as recovery work, and why resting heart rate might be a better performance metric than any wearable, and much more.

    Connect with Sam:
    https://www.instagram.com/sambrownstrength

    Episodes you'll enjoy next:

    • #312 — Optimizing Stress and Performance for Firefighters and Tactical Athletes with Dr. Drew Gonzalez: Listen here
    • #310 — Unpacking the Science of Sleep with Dr. Allison Brager: Listen here

    Episode Timestamps:

    • 01:59 – What Air Force Pilots Are Actually Like
    • 07:21 – Back to Basics: Training with Minimal Equipment
    • 10:13 – Breaking the Instagram Training Cycle
    • 12:06 – Endurance Trends Among Pilots
    • 17:05 – The Air Force Trifecta: Nicotine, Caffeine & Alcohol
    • 20:31 – Physical Toll of Flying: Vibration, Posture & Injury
    • 23:44 – Stress Cements Posture: The Sympathetic Domination Problem
    • 28:06 – Down-Regulation Protocols After Training
    • 30:47 – Hiding the Pill in the Peanut Butter
    • 47:44 – Wearables & the Loss of Body Awareness
    • 50:31 – Resting Heart Rate as the Performance Metric
    • 52:14 – The GOAT Drill for Cognitive Load & Recovery
    • 1:02:31 – Building a Culture of Buy-In & Program Integration

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 15 mins
  • The Counseling Skills Nutrition Coaches Are Missing — Dr. Krista Scott-Dixon — #394
    Jul 13 2026

    Dr. Krista Scott-Dixon, PhD, is the author of the 700-page textbook Applied Nutrition Coaching and Counseling for Coaches.

    Most nutrition coaches know their protocols — but very few have been trained in what to actually do when a client says something unexpected, breaks down, or simply won't follow the plan. Dr. Krista Scott-Dixon reveals the counseling techniques that most nutrition coaches have never learned — and why mastering them matters more than any protocol. She explains why over-optimized clients are often the most fragile, how AI is eroding the critical thinking skills coaches rely on, and what it really takes to translate complex science into simple, effective actions.

    Expect to learn why LLMs are story-making machines that confidently get facts wrong, how the broken healthcare system is pushing patients toward fringe advice, what body awareness coaching actually looks like in practice, why Dunning-Kruger applies to both coaches and clients, how to help clients prepare better conversations with their doctors, and what makes coaching an irreplaceable human profession — and much more.

    Connect with Krista:
    Website: https://kristascottdixon.com/
    Instagram: https://www.instagram.com/stumptuous
    Facebook - https://www.facebook.com/coach.krista.scottdixon
    1% Better Academy - https://onepercentbetteracademy.com/

    Episodes you'll enjoy next:
    #328 — Grit Gains: Building Mental Toughness and Resilience in Training with Ben Mayfield Smith: https://miketnelson.com/podcast/episode-328-grit-training-and-resilience-ben-mayfield-smith
    #373 — The Future of Fitness + Healthcare: Coaches, Blood Work, and Client-Centered Models: https://flex-diet-podcast.simplecast.com/episodes/episode-373-the-future-of-fitness-healthcare-coaches-blood-work-and-client-centered-models-kevin-dineen-k12eNARO

    Episode Timestamps:
    02:02 The Dangers of AI for Health Research
    03:40 LLMs as Story-Making Machines
    04:35 Mike's AI Citation Fail & the 'Dead Internet' Theory
    08:55 The Antidote: Getting Back to Basic Skills
    09:55 Literacy, Critical Thinking & Health Literacy Crisis
    16:55 The Broken Healthcare System & Why Patients Distrust Providers
    18:20 Why Parents Seek Fringe Medical Advice for Their Kids
    20:55 The Power of Simple Coaching Interventions
    22:55 Coaching as Translation: Complex Science, Simple Actions
    26:35 Teaching Clients Body Awareness & Self-Observation
    28:55 Gym Culture & The Dissociative Society
    30:55 When Clients Don't Know Why They Feel Bad
    33:25 Helping Clients Prepare Better Conversations with Their Doctors
    37:55 AI, Cortisol Grift & Bastardized Physiology
    40:55 If It's So Easy, Show Me — Krista's Coaching Insight
    45:55 Dunning-Kruger, Expertise & Learning to Question Everything
    51:55 Decision-Making: Low Bullshit, Cool People, Meta Skills
    56:55 Choosing Projects & Finding Your Authentic Fit
    61:55 The Book: Who It's For & What It Covers
    74:55 Coaching as a Human Profession (Not to Be Automated)
    84:55 Sprinting, Scope of Practice & Knowing Your Clients
    86:55 Where to Find Krista & Closing Thoughts

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 30 mins
  • From Powerlifter to Trail Runner — Paul Oneid & Cody Miller — #393
    Jul 6 2026

    In this episode of the Flex Diet Podcast, I sit down with Paul Oneid, MS, MS, CSCS and Cody Miller for a conversation about rebuilding from injury and the transition from strength sports to endurance training.

    Paul Oneid tore both quads and rebuilt himself from powerlifter to trail runner, with coach Cody Miller guiding the transition. They break down the emergent training approach, VO2 max and cardiac adaptations, and the mental side of suffering across strength sports and endurance.

    In this episode, you'll learn:

    • How Paul's decision to move away from powerlifting and bodybuilding after tearing both quads
    • The emergent, responsive approach Cody used to build Paul's running base from scratch
    • Why cardiac structural adaptations (like resting heart rate drops) take months, not weeks
    • Cody's time-to-exhaustion model for structuring endurance intervals without needing lactate testing

    Find Paul here:

    https://masterathletic.com

    https://coachescorneru.com

    https://www.instagram.com/pauloneid/

    Find Cody here:

    https://hoopiestrength.com/

    https://www.instagram.com/coach.cody.miller

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 21 mins
  • How to Harness Leucine and EAA for Bigger Muscles and More — Daniel A. Traylor, Ph.D. — #392
    Jun 29 2026

    Can you really build more muscle just by rethinking how you dose leucine and essential amino acids? Dr. Daniel A. Traylor, Ph.D. — co-founder and principal scientist of LEUVATE™ — reveals the science behind protein quality, muscle protein synthesis, and why older adults may need twice the protein dose to get the same results as younger people.

    We dig into mTORC1 signaling, sarcopenia, the 30g protein absorption myth, GLP-1 drug effects on muscle, and the clinical trial data behind LEUVATE™. If you care about muscle, longevity, or protein strategy, this one is loaded.

    Guest Bio

    Daniel A. Traylor, Ph.D. is an Assistant Professor of Health Sciences at DePaul University in Chicago and Owner, Co-Founder, and Principal Scientist of LEUVATE™. His research explores how protein quality, amino acids, and exercise interact to influence muscle adaptation, recovery, and physical function across the lifespan. He is the co-inventor of LEUVATE™ — a precision-engineered leucine-enriched nutritional formula validated across multiple peer-reviewed human clinical trials.

    Timestamps
    • 3:36 — Can you really only absorb 30g protein at once?
    • 9:16 — Sarcopenia: the muscle-loss crisis in aging
    • 16:01 — mTORC1 and what triggers muscle protein synthesis
    • 20:46 — Why older adults may need twice the protein dose
    • 30:26 — The origin story of LEUVATE™
    • 34:01 — Leucine: the master switch for MPS
    • 37:56 — How leucine acts as a dimmer on mTORC1
    • 53:21 — GLP-1 drugs, muscle loss, and amino acid needs
    • 1:06:36 — LEUVATE™ vs whey: MPS data and ongoing trials
    • 1:17:01 — How leucine-enriched EAAs signal differently in the gut
    • 1:27:11 — Protein spiking and supplement quality red flags
    Resources
    • LEUVATE™
    • Dr. Traylor email

    Get the Daily Fitness Insider newsletter (free): https://www.miketnelson.com/newsletter

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    1 hr and 40 mins