The Know Your Physio podcast welcomes Dr. Nathan S. Bryan, one of the world’s foremost authorities on nitric oxide biology, for a compelling discussion on why nitric oxide may be “the penicillin of the 21st century.” With more than 20 years of research, a Ph.D. in molecular medicine, and deep involvement in biotech innovation, Dr. Bryan brings clarity and scientific depth to a molecule that is rapidly reshaping modern health and performance.
In this episode, Dr. Bryan explains what nitric oxide is, how it works inside the body, and why a decline in nitric oxide production appears to underlie many of today’s poorly managed chronic diseases. He breaks down the symptoms of low nitric oxide levels, the root causes behind those deficiencies, and the lifestyle factors—nutrition, sunlight exposure, breathwork, oral microbiome health, and targeted supplementation—that influence nitric oxide production.
Listeners of Know Your Physio learn how nitric oxide regulates oxygen delivery, circulation, cognitive function, sexual performance, and physical endurance. Dr. Bryan also discusses how mouthwash, fluoride, and oral hygiene habits disrupt the oral microbiome and reduce nitric oxide output, and he introduces actionable strategies to restore this crucial pathway naturally. The conversation touches on the science behind nitric-oxide-supporting products, the challenges slowing public and clinical adoption, and Dr. Bryan’s mission to bring safe and effective nitric oxide technology into every major market segment worldwide.
The episode also highlights Dr. Bryan’s advice for young scientists, his upcoming book The Secret of Nitric Oxide, and his perspective on popular habits such as caffeine use, detox tools, and magnesium supplementation. With clear explanations and real-world guidance, this Know Your Physio interview bridges cutting-edge science with practical steps anyone can apply to improve their nitric oxide levels and overall well-being.