Expert Insights
Learn directly from the world's leading functional medicine physicians, nutritionists, and health researchers. These are the educators whose work forms the foundation of everything on this site.
Gary Brecka
Human Biologist & Biohacker · Genetics, Breathwork & Human Optimization
Gary Brecka is a human biologist and co-founder of 10X Health System. He is known for his work on genetic testing, methylation, and breathwork as tools for radical health transformation.
Dr. Eric Berg
Clinical Nutritionist, DC · Keto, Fasting & Metabolic Health
Dr. Eric Berg is a chiropractor and clinical nutritionist who has spent 30+ years helping patients reverse chronic disease through Healthy Keto and intermittent fasting. His YouTube channel has over 12 million subscribers.
Dr. Paul Saladino
Ancestral Medicine Physician, MD · Animal-Based Nutrition & Evolutionary Health
Dr. Paul Saladino is a board-certified physician and author of The Carnivore Code. He advocates for animal-based nutrition rooted in evolutionary biology and has become one of the most prominent voices in ancestral health.
Dr. Joseph Mercola
Osteopathic Physician, DO · Mitochondrial Health & Cellular Energy
Dr. Joseph Mercola is an osteopathic physician and founder of Mercola.com, one of the most visited natural health websites in the world. He focuses on mitochondrial health, EMF exposure, and cellular biology.
Dr. Mark Hyman
Functional Medicine Physician, MD · Food as Medicine & Functional Health
Dr. Mark Hyman is a physician and 14-time New York Times bestselling author. He is the founder of the UltraWellness Center and a leading voice in functional medicine, focusing on food as medicine and systems biology.
Thomas DeLauer
Performance & Fasting Coach · Fat Adaptation, Autophagy & Metabolic Optimization
Thomas DeLauer is a performance coach and researcher with over 4 million YouTube subscribers. He specializes in the science of fasting, fat adaptation, and metabolic optimization for athletes and everyday people.
Dr. Rhonda Patrick
Biomedical Scientist, Ph.D. · Micronutrients, Sauna, Cold Exposure & Longevity Science
Dr. Rhonda Patrick holds a Ph.D. in biomedical science and is the founder of FoundMyFitness.com. She is one of the most rigorous science communicators in the health space, known for her deep dives into micronutrient deficiencies, heat stress (sauna), cold exposure, omega-3 fatty acids, sulforaphane, and the role of vigorous exercise in reversing cardiovascular and brain aging.
The videos featured here are curated from publicly available YouTube content created by the respective experts. IronAgeWisdom does not own this content and is not affiliated with any of the featured educators. All content is presented for educational purposes only.





