On Your Health Matters, host Karl Sterling and co-host Elizabeth Brua welcome Dr. Nathan Bryan—biochemist, nitric oxide (NO) pioneer, and author of The Secret of Nitric Oxide. Dr. Bryan explains why NO is a short-lived yet essential signaling molecule that regulates four hallmarks of chronic disease: blood flow, inflammation, oxidative stress, and immune dysfunction.
They dig into practical lifestyle drivers of NO: ditching antiseptic mouthwash and fluoride-heavy oral products that disrupt the oral microbiome, limiting acid blockers, prioritizing nitrate-rich vegetables, and using brief high-intensity exercise to stimulate endothelial NO production. Dr. Bryan clarifies why common salivary test strips can mislead and highlights flow-mediated dilation (FMD) as a better functional measure.
The conversation covers how NO enables oxygen delivery, why standard American diet (SAD) patterns and environmental toxins erode metabolic health, and a systems view of cancer focused on mitochondrial dysfunction and the Warburg effect. Throughout, listeners get clear, actionable steps: remove NO blockers, restore microbiome health, move daily, and eat clean to rebuild vascular function and resilience.
If you want a grounded roadmap to improve cardiovascular health, metabolic fitness, brain performance, and vitality, this episode delivers science you can use—today.