252. The Truth About Caffeine and Energy Drinks Nobody in the Fitness Industry Wants to Admit
Release Date: 03/26/2026
271: The Practical Peptide Guide for Recovery, Muscle, Fat Loss and Focus
The Kris Gethin Podcast
Peptides have gone mainstream, but the information around them is still a mess. One search brings up five different doses, four delivery methods, and stacks loaded with compounds you may not even need. Too many people copy the protocol, skip the reasoning, and only start asking questions when their energy crashes, the side effects hit, or nothing happens at all. Alex Kikel and I break down how to approach these compounds with an actual plan. We get into protocols for beat-up joints, lagging muscle groups, stubborn fat, cognitive performance, sleep, and pineal support. We also compare...
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270. The Psychology of Overeating
The Kris Gethin Podcast
Why do we overeat—even when we know better? In this solo episode, Kris Gethin explores the psychology behind overeating and why willpower alone is rarely the answer. From emotional triggers and stress eating to nutrient deficiencies and eating too quickly, Kris breaks down the hidden factors that drive cravings and offers practical strategies to regain control. You'll learn how to identify your personal eating patterns, build habits that naturally reduce overeating, and create an environment that supports long-term success. Whether your goal is fat loss, better health, or simply developing a...
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269. Your Gut Is Controlling More Than You Think: Health, Performance & Longevity with Dr. Zach Bush
The Kris Gethin Podcast
What if optimizing your health isn’t just about training, nutrition, supplements, and sleep—but about the trillions of microorganisms living within and around you? In this episode, Kris sits down with Dr. Zach Bush to explore the microbiome and its potential influence on everything from digestion and brain function to hormones, athletic performance, recovery, and longevity. Dr. Bush shares how his career evolved from conventional endocrinology into microbiome and environmental health research, and why he believes many of the health challenges we face today cannot be separated from the...
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268. Biohacking's Blind Spot: What Bryan Johnson's Autoimmune Diagnosis Reveals
The Kris Gethin Podcast
Bryan Johnson's recent autoimmune diagnosis has sparked an important conversation throughout the biohacking community. In this episode, Kris Gethin explores what this moment means—not as a criticism of Bryan's dedication, but as an opportunity to ask bigger questions about health, longevity, and the limits of optimization. Kris discusses the difference between collecting health data and creating true health, why modern lifestyles often disconnect us from our biological foundations, and how factors like sunlight, movement, grounding, nutrition, and resilience may matter more than endlessly...
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267. Life Update: Getting Sick in India, Social Media Bans, and the Dangers of Unregulated Supplements
The Kris Gethin Podcast
Kris Gethin shares insights on fitness, biohacking, the challenges of content creation, and personal experiences from recent travels. This episode offers practical advice on training, nutrition, and navigating the complex world of health supplements and social media. Chapters 00:00 Introduction and studio setup 00:37 New energy drink and market challenges 01:18 Kris Gethin's approach to cardio and the Carol Bike 02:13 Research-backed benefits of Rehit protocol 03:38 Recent travels and seminars in India and UK 05:06 Family, work, and managing distractions 06:27 Dealing with Airbnb and property...
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266. The Science Behind Oral Bioregulators for Aging and Performance
The Kris Gethin Podcast
Understanding Oral Bioregulators: A Deep Dive In the world of health supplements, oral bioregulators are emerging as a significant topic of discussion, yet many remain unaware of their potential benefits and applications. In this episode, we'll explore what oral bioregulators are, how they function, and why they might be a game-changer in your health regimen. Chapters 00:00 Introduction and Context 02:26 Understanding Oral Peptide Bioregulators 09:25 Prostate Health and Bioregulators 13:34 Eye Health and Retinal Support 16:53 Kidney Function and Bioregulators 20:33 Liver Health and...
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265. The Free Health Habits That Make Biohacking Work
The Kris Gethin Podcast
Biohacking has become the new status symbol. Everyone wants the chamber, the wearable, the peptide, the IV, the stem cells, the red light, and the expensive recovery tool. But there is a problem most people do not want to admit: the body may not respond to the expensive stuff if the foundation underneath it is weak. In this episode, I’m talking about the part of biohacking that does not look impressive online but changes how well everything else works. The part people skip before they spend thousands trying to fix their energy, sleep, recovery, hormones, body composition, inflammation,...
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264. Why Researchers Are Rethinking Tanning: Melanotan Explained
The Kris Gethin Podcast
Kris Gethin explores the use of melanotan, a peptide that stimulates melanin production, as a healthier alternative to traditional tanning methods. He discusses its benefits for skin health, appearance, confidence, and long-term skin protection, emphasizing research perspectives and safety considerations. Chapters 00:00 Introduction and Kris Gethin's Personal Tanning Experience 01:22 What is Melanotan and Its Historical Use 03:41 Visual Benefits of a Darker Skin Tone 05:38 Health Risks of Tanning Beds and Overexposure 07:32 Pre-Holiday Skin Preparation with Melanotan 08:52 Reduced Sun Exposure...
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263. Can Tesamorelin Help You Burn Fat and Age Better?
The Kris Gethin Podcast
Discover the science behind Tesamorelin, a research peptide targeting visceral fat and promoting health span. Kris Gethin breaks down its mechanisms, research findings, and implications for fat distribution and longevity. Tesamorelin is a synthetic analog of growth hormone release hormone (GHRH), stimulating the pituitary to release endogenous growth hormone rather than supplying synthetic GH. It primarily targets deep visceral fat, especially around organs, instead of just superficial subcutaneous fat. Visceral fat is linked to metabolic diseases, inflammation, insulin resistance, and...
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262. The Food Label Lie: Why Your “Healthy” Food May Not Be What You Think with Will Harris
The Kris Gethin Podcast
Most people think they know what they’re eating because they read the label. Grass-fed. Organic. High protein. Product of the USA. Low calorie. Clean ingredients. But that label is the end of the story, not the beginning. The beginning is the soil. The animal. The feed. The farm. The chemicals. The confinement. The way the food was raised, processed, mixed, marketed, and sold before it ever reached your plate. And that’s where a lot of people are getting fooled. In this episode of The Kris Gethin Podcast, I sit down with Will Harris, fourth-generation farmer and owner of White Oak...
info_outlineCaffeine is so normal in training culture that nobody questions it anymore. But the shock is this: the same stimulant you’re using to “perform” can be cutting blood flow, drying you out, wrecking sleep quality, and pushing cortisol up while you chase a better physique.
If you’re living on pre-workout and energy drinks, you might not be training with energy at all. You’re training with stimulation, and the bill shows up later in recovery, muscle fullness, insulin sensitivity, and long-term performance.
In this episode of the Kris Gethin Podcast, I dismantled the science behind why caffeine is working against every goal you are training for and what the most disciplined athletes are actually doing instead.
What’s Discussed:
(00:01) Why I recorded this at the Arnold Classic and what I noticed about energy drink culture
(01:08) Why caffeine is normalized and why most lifters think they “need it”
(02:00) Adenosine explained, and how caffeine can reduce vasodilation and the pump
(04:24) The diuretic effect and why dehydration changes performance inside the muscle cell
(06:26) Sleep architecture, recovery, and why slow metabolizers get hit hardest
(08:05) Cortisol, chronic stress load, and the muscle loss risk nobody talks about
(09:55) Insulin sensitivity, nutrient partitioning, and why this matters for body comp
(11:05) The stimulant dependency trap and how tolerance quietly escalates doses
(13:00) Paraxanthine explained, and why I use it instead of caffeine
(14:22) The real takeaway for performance, physique, and longevity
If you train hard and care about muscle, recovery, and longevity, but have never once questioned what your daily caffeine habit is actually doing to your body, this episode is required listening.
Thank you to our sponsors:
Biostack: NAD + Cell Shield from Biostack Labs https://biostacklabs.com/kris
Unmatched Supps: Natural pre workout, recovery, and hydration support (KGC10 for 10% off)
Find more from Kris:
Website: https://www.krisgethin.com/
Instagram: https://www.instagram.com/krisgethin/
Youtube: https://www.youtube.com/krisgethin
2 Shred: https://www.unmatchedsupps.com/products/2shred
Resources Referenced in This Episode:
Red Light Therapy
Brand: Red Light Rising
Link: https://redlightrising.co.uk/
Code: GETHIN5
Lumaflex, click here and use Code: KRISGETHIN (10% off)
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Cartilax
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Sigma / Bio Cartilage / Nova Cartilage
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Vesugen