Flex Diet Podcast

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

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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

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

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

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

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