In this episode of The Empowering Neurologist, Dr. David Perlmutter sits down with nitric oxide researcher Dr. Nathan Bryan to unpack why this tiny gas molecule is so central to human health. They explore how nitric oxide regulates blood pressure, blood flow, insulin signaling, brain function, immune defense, and even sexual health—and why deficiencies in nitric oxide are linked to hypertension, type 2 diabetes, erectile dysfunction, Alzheimer’s, vascular dementia, and poor wound healing. Dr. Bryan explains why nitric oxide is so hard to measure directly, how symptoms often reveal deficiencies before lab tests do, and why endothelial dysfunction is the common thread behind many chronic diseases.
The conversation then gets very practical. You’ll learn how everyday habits—like using antiseptic mouthwash, fluoride toothpaste, chronic antibiotics, and long-term proton pump inhibitors—can silently sabotage nitric oxide production by damaging the oral microbiome or blocking key pathways. Dr. Bryan breaks down how dark green leafy vegetables, chewing your food, maintaining healthy oral bacteria, regular exercise, sunlight exposure, and smart lifestyle choices can restore nitric oxide levels naturally. They also touch on MTHFR polymorphisms, age-related nitric oxide decline, exercise performance, Viagra’s mechanism via nitric oxide, breakthrough wound-healing therapies, and Dr. Bryan’s upcoming book The Secret of Nitric Oxide. The core message: support your body’s ability to make nitric oxide, and you support virtually every system in your body.