The Optispan Podcast with Matt Kaeberlein

Latest Episodes:

Optispan Success Story: How I Got Strong Without Living at the Gym Feb 07, 2026

Show notes

In this episode, Matt sits down with Shannon Anderson, a 63-year-old executive recruiter who spent decades mistaking good looks for good health. Shannon's 46-year journey from eating disorders to true health is one of the most honest, inspiring conversations we've had on the podcast. Shannon grew up in the era of Jane Fonda and extreme dieting. She struggled with bulimia and anorexia for years, thinking she'd "invented" the perfect solution to looking good while eating whatever she wanted. It worked until it didn't. At 60, her body stopped performing. She couldn't lift a laundry detergent box without two hands. Her brain was slowing down. Despite going to the gym regularly, she wasn't making progress. That's when she discovered Optispan, and everything changed.

0:00 - Matt Introduces Shannon Anderson2:19 - Shannon's Early Struggles: Bulimia, Anorexia, and Body Image9:34 - The Breaking Point: When Her Body Stopped Performing at 6013:42 - Matt and Shannon Discuss Pop Culture's Influence on Health19:01 - The Dark Side of "Wellness": Extreme Diets and Eating Disorders22:44 - Shannon's Wake-Up Call: "I Looked Like a Clown"26:09 - Matt Asks: Should Women Fear "Bulking Up"?31:24 - Shannon's Exact Workout Routine (3 Hours/Week)40:18 - How Shannon Found Her Trainer (Job Description Method)45:10 - Hormone Therapy: The Game-Changer Shannon Didn't Expect48:34 - Testosterone for Women: Muscle, Strength, and Sexual Health52:19 - Shannon on Brain Fog: "Your Brain Craves Estrogen"53:41 - Shannon's Nutrition Principles: Protein, Fiber, Whole Foods1:05:03 - How Shannon Discovered the Concept of Longevity1:09:22 - Biomarkers That Surprised Shannon: Prediabetic Despite Healthy Habits1:11:00 - Sleep Apnea Discovery: From 5 to 9 Hours of Sleep1:13:26 - Shannon's VO2 Max in the 90th Percentile—Without Doing Cardio1:17:22 - The 6-Month Slump: When Shannon's Biomarkers Crashed1:21:11 - Matt's Question: What's the First Step for Someone Starting Out?1:29:50 - Shannon's Final Message: "Health from the Inside Out"

The New Food Pyramid (A Step In The Right Direction) Jan 24, 2026

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Subscribe to our channel: / @optispan Get Our Newsletter (It's Free): https://www.optispan.life/The new Dietary Guidelines for Americans just dropped—and we're breaking down what's actually good, what's questionable, and what the science really says. From the flipped food pyramid to the controversial alcohol recommendations, we cover it all. Plus, a full page-by-page reading of the entire 10-page document with expert commentary.This video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/Timestamps02:04 The pyramid is upside down now?!04:50 MyPlate vs. 1992 pyramid vs. today06:12 The real shift: Whole foods over nutrients09:06 The 5 takeaways everyone needs to know09:54 Where science and politics collide14:24 Why they removed alcohol limits17:37 Reading the full document (with commentary)22:56 How much should YOU actually eat?23:52 Protein is king now27:35 Veggies & fruit: They lowballed it29:42 Butter and beef tallow made the list31:24 Do you actually need whole grains?32:24 The war on processed foods37:32 Sodium & alcohol: The real numbers39:58 What to feed babies & toddlers46:31 Pregnancy & breastfeeding nutrition49:23 Why older adults need to eat cleaner50:52 Can diet reverse chronic disease?52:10 Vegan? Here's what you're missing54:30 Final verdict & what actually mattersDISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: / mkaeberlein Linkedin: / optispan Instagram: / optispan_ TikTok: / optispan https://www.optispan.life/

What Peter Attia Got Right About Ultimate Health (Rapidfire) Jan 17, 2026

Show notes

Subscribe to our channel: https://www.youtube.com/@optispanGet Our Newsletter: https://www.optispan.life/This is a reaction video on Peter Attia’s 60-second health take, from carnivore diets and testosterone to seed oils and fasting. Matt provides nuanced medical commentary on where he agrees, disagrees, and adds crucial context that Attia's format couldn't include. Woven throughout is the surprising personal story of how Matt's 60 Minutes interview led to VIP New Year's Eve passes from Anderson Cooper, blending high-level health analysis with human connection. The episode debates headline health claims while sharing a once-in-a-lifetime NYC experience.This video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:

Timestamps:

0:00 Cold open: rapid-fire takes (carnivore, testosterone, fasting, deodorant, etc.)
0:42 Season 3 renewal + new year intro
1:01 Holiday recap
1:31 Times Square ball drop + Anderson Cooper passes (60 Minutes connection)
3:33 Setup: reacting to Peter Attia’s 60 Minutes “rapid fire”
4:14 Multivitamin: “pass” (insurance policy vs evidence)
5:01 Metformin: “definitely pass” for non-diabetics
6:04 Seed oils: modest quantities likely not harmful
6:27 Mouth taping: useful for some mouth breathers
6:51 Bluetooth headphones + EMF: what we know vs what’s uncertain
8:32 Weighted vests vs rucksacks: does it matter?
9:33 Carnivore diet: “very extreme”
9:47 Heavy metal “detox”: snake oil vs real testing and interventions
11:27 Food dyes: “deck chairs on the Titanic” (majoring in the minor)
14:53 Microplastics: what to change, pragmatic exposure reduction
18:47 Hormone replacement therapy (women): “crime of the century” + WHI fallout
21:50 Testosterone for men: net positive, but abused/scamified
23:16 Testosterone for menopausal women: emerging evidence + clinical reality
25:37 Sleep tracking + wearables: helpful unless it creates anxiety
26:23 Deodorant vs antiperspirant: aluminum concerns and skin irritation
28:43 Non-stick pans / PFAS: relative risk and practical choices
29:52 Intermittent fasting: protein risk + eating-disorder cautions
31:39 Wrap-up + subscribe/comments outrohttps://onebillionmedia.com/DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: https://twitter.com/mkaeberleinLinkedin: https://www.linkedin.com/company/optispanInstagram: https://www.instagram.com/optispan_/TikTok: https://www.tiktok.com/@optispanhttps://www.optispan.life/

Everything I do for Healthspan (and why I skip THESE Supplements) Jan 10, 2026

Show notes

Subscribe to our channel: https://www.youtube.com/@optispanGet Our Newsletter (It's Free): https://www.optispan.life/As we close out 2025, I'm sharing a comprehensive and honest review of my personal health optimization protocol. I break down the exact lifestyle habits, supplements, and medications I use daily, and just as importantly, which popular ones I avoid and why.I detail the massive impact of my "Four Pillars" and explain the thought process behind each item in my regimen, from Omega-3s and creatine to testosterone, SGLT2 inhibitors, and rapamycin.If you've ever wondered what a data-driven, no-BS approach to longevity looks like in practice, this is it.*Timestamps:*

00:00 - Podcast Start / Topic Overview01:16 - Philosophy: Focus on Foundations, Not Hype02:10 - The Four Pillars of Healthspan (Eat, Move, Sleep, Connect)03:27 - My Personal Pillars Assessment04:33 - Avoiding Risky Behaviors (Alcohol, Drugs, Environment)06:44 - Pillar 1: EAT - My Rules, Keto Bread, Protein Sources09:51 - Pillar 2: MOVE - Weekly Exercise Routine (Zone 2, Weights, HIIT)12:19 - Pillar 3: SLEEP - Routine & The Alcohol Effect13:29 - Pillar 4: CONNECT - Relationships & Personal Growth14:52 - SUPPLEMENTS: My Skeptical Philosophy16:43 - Supplement Disclosures (Past/Present Company Ties)17:47 - My Daily Supplements List: Omega-3, Vitamin D, Rejuvent (CA-AKG), Lithium, Methylfolate, Creatine23:03 - Supplements I DON'T Take: Magnesium, Collagen, Fiber, Ashwagandha, NAD+ Boosters, Senolytics & Why28:42 - How to Choose a Supplement Brand (ConsumerLab Warning)30:19 - MEDICATIONS & PREVENTATIVE DRUGS30:48 - Testosterone Therapy: My Protocol, Impact, & Monitoring33:49 - Jardiance (Empagliflozin): SGLT2 Inhibitor for Biomarkers35:55 - Repatha (PCSK9 Inhibitor): For Heart Disease Prevention37:47 - Tirzepatide (Mounjaro/Zepbound): My Microdosing Experience40:01 - Rapamycin (Sirolimus): My Cyclical Protocol & Stance on Recent News41:41 - Tadalafil (Cialis) & Metformin: Why I'm Off/Against Them For Now46:08 - Final Summary & Take-Home Principles46:50 - The Importance of a Good Doctor & Rational Risk/Reward48:48 - Wrap-Up & Holiday WishesThis video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: https://twitter.com/mkaeberleinLinkedin: https://www.linkedin.com/company/optispanInstagram: https://www.instagram.com/optispan_/TikTok: https://www.tiktok.com/@optispan

This Viral "Whorebath" Test Is Not What You Think It Is Jan 08, 2026

Show notes

Subscribe to our channel: / @optispan Get Our Newsletter (It's Free): https://www.optispan.life/They call it the "whorebath" test. 🛁 We call it a massive misunderstanding of science.

ing biological age tests.In this episode, Dr. Matt cuts through the noise to explain what ageing clocks actually are, what they measure, and more importantly, what they DON'T. You'll learn why that $500 direct-to-consumer test is likely giving you meaningless noise, why seeing a drop in your "biological age" is often a statistical illusion, and what to do if your doctor recommends one.By the end, you'll understand ageing clocks better than 95% of the supposed experts and influencers out there. You'll also learn about the type of clock that shows real promise for personalized health today.This video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/

Timestamps0:00 - Introduction1:18 - What Inspired This Deep Dive1:54 - My Actual Position on Ageing Clocks7:49 - Take Home #1: What is a Clock, Really?10:30 - How Biomarkers (Like VO2 Max) Correlate to Age15:32 - The Problem: My "Age" is 40 AND 6925:22 - Take Home #2: The Many Flavors of Clocks36:53 - Take Home #3: Clocks Do NOT Measure Ageing38:15 - Take Home #4: Clocks ARE Useful... For Research39:52 - Take Home #5: Why They're Useless Outside Research42:05 - Precision vs. Accuracy: The Fatal Flaw48:38 - A Statistical Nightmare: Your Quarterly Test Results53:50 - BONUS: The Clocks That Might Actually Work (PhenoAge, ENABLE Age, LinAge₂)1:01:06 - The 5 Take-Home Messages Summarized1:02:03 - Final Advice & A Question for DoctorsDISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: / mkaeberlein Linkedin: / optispan Instagram: / optispan_ TikTok: / optispan https://www.optispan.life/

Preventive Failure: How Modern Healthcare Misses Disease Early Jan 07, 2026

Show notes

Subscribe to our channel: / @optispan Get Our Newsletter (It's Free): https://www.optispan.life/Join Matt and Dr. Nicole (Nicki) Byrne, Clinic Director at Optispan, for a deep dive into preventative Healthspan Medicine. In this episode, they discuss why traditional reactive healthcare is failing us, what true preventative care looks like, and the comprehensive, data-driven approach used at Optispan to catch risks early and optimize long-term health. From advanced diagnostics to lifestyle pillars and evidence-based medications, learn how to shift from treating disease to building resilience.🔬 Topics Covered:The moment Dr. Byrne realized traditional medicine was focused on the wrong end of the problem.The dangers and gaps in the current "longevity medicine" ecosystem.A complete walkthrough of Optispan's Gateway Day assessment: advanced bloodwork, genetics, point-of-care ultrasound, DEXA scans, CGM, sleep tracking, and more.Real patient examples of conditions caught early that standard care would have missed (e.g., insulin resistance, fatty liver, plaque buildup).How data from multiple sources creates a personalized health blueprint.The philosophy behind using medications (like GLP-1s, SGLT2 inhibitors, Rapamycin) and supplements preventatively.The critical pillars of health: Eat, Move, Sleep, and Connect.A vision for how healthcare should work in the next five years.This video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/

Timestamps

1:04 Meet Dr. Nicki Byrne3:25 The 80-Year-Old With "Hormones of a 25-Year-Old"4:41 "People Think I'm a Snake Oil Salesman"9:52 She Looked Healthy—Then We Found Plaque13:56 The Danger of a "Negative" Cancer Screening17:00 Why Your "Normal" Lab Results Might Not Be Normal for You25:44 What Actually Happens During a 5-Hour Health Day33:29 What Your 3am Blood Sugar Spike Is Really Telling You35:09 You're Probably Lying to Yourself About Sleep38:24 Insulin Resistance: The Root of All Evil43:07 Wealthy, Successful… and Lonely51:08 Peptides From a Sketchy Website? Here's What to Know1:06:20 The Rapamycin Skin Cream Experiment1:08:05 What Should Be "Normal" Healthcare in 5 YearsDISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: / mkaeberlein Linkedin: / optispan Instagram: / optispan_ TikTok: / optispan https://www.optispan.life/

6 Months on TRT Changed My Body (THIS Is My Takeaway) Dec 13, 2025

Show notes

This is an AMA episode where Dr Matt answers the pressing questions audience had. In this episode, Matt shares candid updates on his TRT journey and physique, debates rapamycin protocols vs. extreme fasting, and separates the scary headlines from the science on microplastics and "magic" mushrooms. Plus: why he wakes up at 4:30 AM, the truth about HBOT, and a surprising update on his books.Timestamps

0:00 Intro1:00 Is Matt Still Taking Rapamycin?6:09 Best Time of Day to Take Rapamycin8:29 48-Hour Fasting vs. Rapamycin for Longevity11:44 Why Matt Wakes Up at 4:30 AM14:43 Supplement Updates: Creatine, Astaxanthin & Glycine19:27 Hyperbaric Oxygen Therapy for Brain Health26:04 Epigenetic Clocks vs. Functional Biomarkers30:54 Microplastics: How Worried Should You Be?37:55 Matt's TRT Results After 6 Months43:00 TRT Side Effects: Hair Loss, Blood Work & HDL ChangesThis video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: / mkaeberlein Linkedin: / optispan Instagram: / optispan_ TikTok: / optispan https://www.optispan.life/

The Dangerous Truth About The Peptide Craze (I Tried It) Dec 06, 2025

Show notes

This podcast episode is part three of a travel series where Matt recounts his recent trips to longevity and healthspan conferences in Geneva, Chicago, and Mauritius. He shares his experiences with jet lag, workouts, and the contrasting cultures of these events, from the more "alternative medicine" feel of the Geneva summit to the more scientifically-grounded Mauritius conference. A major theme is his critique of the current state of the longevity field, where he advocates for evidence-based approaches and calls out what he sees as misinformation, specifically regarding the overhyping of peptides, stem cells, and the misuse of epigenetic "aging clocks."This video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/DISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: / mkaeberlein Linkedin: / optispan Instagram: / optispan_ TikTok: / optispan https://www.optispan.life/

New Discovery: This Molecule Could Beat Rapamycin in Longevity Nov 29, 2025

Show notes

Subscribe to our channel: / @optispan Get Our Newsletter (It's Free): https://www.optispan.life/Dive into the future of longevity research with Dr. Ben Blue, CEO of Ora Biomedical. We explore how Ora's high-throughput "Wormbot" platform is conducting the world's largest unbiased search for longevity interventions, moving beyond the narrow focus on established pathways like mTOR.In this episode, we discuss:• The ambitious Million Molecule Challenge and why it could revolutionize the field.• Surprising discoveries already made, including molecules that outperform rapamycin.• Ora's strategic pivot to radiation resistance, with applications for astronauts, pilots, and human health.• How their data-driven approach is uncovering interventions for resilience against toxins and other stresses.• The journey from worm models to potential clinical trials and what's next for the company.Learn how Ora is scaling drug discovery to tackle aging and age-related diseases.https://orabiomedical.com/https://x.com/OraBiomedical / ora-biomedical-inc This video was produced by One Billion Media, an agency that specializes in YouTube virality for health brands and experts. Learn more about their work here:https://onebillionmedia.com/

Timestamps

00:00 – Intro01:13 – Welcome & Disclosure02:40 – Ora Biomedical & the Longevity Mission04:04 – How the Wormbot Was Born06:43 – Matt's Perspective on the Wormbot09:22 – Automating Lifespan Experiments at Scale12:29 – The Million Molecule Challenge15:03 – Success Stories from the Challenge16:10 – A Better mTOR Inhibitor Than Rapamycin19:05 – Ora's Molecule Beats Rapamycin20:08 – 60% Lifespan Extension Discovery24:03 – Ivermectin & Surprising Findings24:55 – From Longevity to Anti-Parasite Drugs31:09 – Hot Take: Discovery vs. Mechanism35:22 – The Million Molecule Challenge Database40:45 – Radiation Resistance: A New Focus44:57 – Space Travel & Longevity Medicine49:18 – Testing Resilience to Toxins & Stress56:54 – What Thousands of Tests Reveal About Aging Pathways01:00:41 – False Positives vs. False Negatives in Screening01:04:45 – Skin Health & Anti-Aging Potential01:07:59 – What's Next for Ora BiomedicalDISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://x.com/Optispan_IncTwitter: / mkaeberlein Linkedin: / optispan Instagram: / optispan_ TikTok: / optispan https://www.optispan.life/

Matt's Thanksgiving Message Nov 27, 2025

Show notes

Happy thanksgiving from the Optispan Team!

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