#407: How MUSCLE Changes Everything: The Secret Organ of Longevity | Why “Healthy Sedentary” Is a Myth (and What To Do Instead) With Dr. Gabrielle Lyon
LONGEVITY with Nathalie Niddam
Release Date: 01/27/2026
LONGEVITY with Nathalie Niddam
Today, I’m sitting down with , a good friend and one of my favorite collaborators when it comes to cutting-edge insights in personalized health and longevity. In this episode, I put myself under the microscope as we walk through my own metabolomics testing after a period of heavy travel, stress, and—yes—a break from my usual supplement routine. If you’ve ever wondered whether skipping your foundational health habits “just for a little while” really matters, you’re about to find out. If you are a clinician and would like to offer the Aristotle test to your patients please use...
info_outlineLONGEVITY with Nathalie Niddam
Today, I’m joined by the remarkable , a pioneer in redefining the longevity conversation by making muscle health—not weight—the centerpiece of aging well. With a background in geriatrics and nutritional sciences, she illuminates why the quality of your muscle tissue is a far more powerful predictor of health than any number on the scale. Her perspective challenges the notion of a “healthy sedentary person” and reveals the major role of intramuscular fat in metabolic dysfunction. Check out her book . Episode Timestamps: Introduction, podcast focus, and welcoming Dr....
info_outlineLONGEVITY with Nathalie Niddam
Today, I’m joined by the incredible Anthony Castore, a trailblazer who fuses elite strength coaching with deep cellular medicine. In our conversation, Anthony shares his journey from a young athlete determined to defy genetic odds to becoming an expert in both physical training and the nuanced science of peptides, mitochondria, and bioregulators. Use code NAT10 for 10% off products at Episode Timestamps: Welcome and episode introduction ... 00:00:00 Anthony Castore’s path from strength coaching to cellular medicine ... 00:05:55 Connecting strength training with cellular...
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Today, I’m joined by the deeply thoughtful and refreshingly honest , a self-described “curious cardiologist” who spent decades treating heart attacks in the cath lab — before stepping away to ask a bigger question: Why are we waiting for the crisis instead of preventing it? Episode Timestamps: Welcome to Longevity & episode setup … 00:00:00 Dr. Bhojraj’s shift from ER cardiology to prevention … 00:06:30 Why most heart attacks aren’t caused by big blockages … 00:09:15 Stress, nervous system load & heart attack risk … 00:13:10 CIMT explained: what it measures...
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Today, I’m joined by , a true innovator in , and Victor Sagalovsky, a passionate advocate for bringing the science of water quality into our daily lives. Together, we take a deep dive into the unseen world of the water running through our homes—exploring not just its purity, but its hidden potential to support our biology in ways most of us have never considered. - Use code NAT100 Episode Timestamps: Intro to Longevity Podcast and today’s water focus ... 00:00:00 Water system’s health benefits and testing ... 00:01:33 Why water quality is overlooked yet critical ... 00:07:20...
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Today, I’m joined by Ben Katz—better known online as —an academic analytical chemist from UC Irvine whose mission is to uncover what’s really in our everyday foods, drinks, and products. Ben reverse engineers everything from Taco Bell meat to Doritos, and sometimes even entire industries, using cutting-edge mass spectrometry. His curiosity and expertise have made him a go-to source for those wanting to know what’s hiding behind vague ingredient labels and “natural flavors.” Episode Timestamps: Welcome and podcast introduction ... 00:00:00 What is mass spectrometry? ......
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Today, I’m kicking off the new year with a back-to-basics deep dive into one of the most pivotal yet overlooked foundations of longevity: gut health. Over the past episodes, we’ve explored everything from gene therapy to advanced tech, but it all comes back to the habits and systems we rely on every single day—and the gut is right at the center of that equation. Episode Timestamps: Gut health as the cornerstone of longevity ... 00:00:00 Why disease and wellness begin in the gut ... 00:03:46 Symptoms and signs of gut imbalance ... 00:08:53 Normalizing digestive discomfort ......
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Today, I’m joined by the insightful , renowned registered dietitian and fierce advocate for personalized, realistic nutrition that actually works in the real world. In this episode, Ashley Koff opens up about her personal and professional journey—from her early days in big brand marketing (think sugared cereals and infobesity) to her pivotal “aha” moments that led her to champion true weight health, not just weight loss. Episode Timestamps: Welcome and introduction to the Longevity Podcast ... 00:00:00 Personal experiences shaping nutrition philosophy ... 00:05:59 Influence of...
info_outlineLONGEVITY with Nathalie Niddam
Today, I’m excited to bring back the always thought-provoking , author of “The Immunity Code” and “The Way,” for a fresh conversation on why true longevity is about so much more than how much muscle you have or the latest diet trend you’re following. Joel Greene opens up about the hard lessons he’s learned from decades of self-experimentation and reveals why chasing that ideal gym physique might actually backfire as you age. Episode Timestamps: Welcome & episode introduction ... 00:00:00 The evolving nature of health and homeostasis ... 00:08:29 Beware rigid diet...
info_outlineLONGEVITY with Nathalie Niddam
Today, I’m joined by a lineup of trailblazers in the science of longevity: , , , , , and . Together we dig into some of the most persistent myths and cutting-edge research shaping how we age—including why “eat less, move more” misses the mark, what really causes skin cancers, breast cancer screening risks, and the often-overlooked ripple effects of perimenopause. Links to full episodes: Episode Timestamps: Welcome & podcast overview ... 00:00:00 Longevity habits handout & sponsor plug ... 00:00:48 Clean protein choices & contamination risks ......
info_outlineToday, I’m joined by the remarkable Dr. Gabrielle Lyon, a pioneer in redefining the longevity conversation by making muscle health—not weight—the centerpiece of aging well. With a background in geriatrics and nutritional sciences, she illuminates why the quality of your muscle tissue is a far more powerful predictor of health than any number on the scale. Her perspective challenges the notion of a “healthy sedentary person” and reveals the major role of intramuscular fat in metabolic dysfunction. Check out her book The Forever Strong Playbook.
Episode Timestamps:
Introduction, podcast focus, and welcoming Dr. Gabrielle Lyon ... 00:00:00
Muscle's impact on brain health, inflammation, and healthy aging ... 00:01:03
Dr. Lyon's childhood, grit, and self-discipline ... 00:04:33
Mentorship and protein science under Dr. Donald Lehman ... 00:07:05
Muscle as the overlooked metabolic organ ... 00:08:45
Why intramuscular fat matters more than body weight ... 00:10:06
Plant vs. animal protein for muscle health ... 00:13:29
Muscle as an endocrine organ and cognition ... 00:16:21
Future of muscle science: anabolics, imaging, and technology ... 00:18:22
GLP-1s, sarcopenic obesity, and muscle-first protocol ... 00:46:45
Sarcopenia, aging, and the importance of early training ... 01:04:35
Building lifelong resilience—mental and physical ... 01:08:31
Predictions: anabolics, muscle testing, and assessment ... 01:12:17
"Strength is a responsibility, not a luxury" ... 01:13:53
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