On this high-impact episode of Dave Asprey, Dr. Nathan Bryan breaks down why nitric oxide may be the most important molecule for human performance, longevity, and metabolic health — and why almost no one in conventional medicine is talking about it. Nitric oxide controls blood flow, mitochondrial function, insulin signaling, libido, cognition, immune defense, and the body’s ability to repair and regenerate. When levels crash, everything from brain fog to high blood pressure to fatigue to erectile dysfunction becomes inevitable.
Across this deep-dive conversation on Dave Asprey, Dr. Bryan exposes the modern habits that silently destroy nitric oxide production — sugar, mouthwash, antacids, chronic medications, low stomach acid, and a processed Western diet. He explains why 50% of men don’t respond to Viagra (hint: they’re nitric-oxide deficient), why many popular “NO boosters” don’t work, and how nitric oxide acts as the first domino in the entire metabolic cascade.
You’ll learn why nitric oxide disappears from the body within seconds, how the two major production pathways work, what shuts them down, and the specific steps to restore them. Dr. Bryan breaks down the science of nitrate-converting oral bacteria, mitochondrial biogenesis, glute-4 insulin signaling, oxygen utilization, vasodilation, and why nitric oxide determines whether the brain gets enough blood flow to function.
He also reveals groundbreaking data on nitric oxide and COVID — including why people with high nitric oxide levels were naturally resistant, how nitric oxide disrupts viral replication, and why the FDA rejected his team’s early-treatment IND despite promising results.
This episode of Dave Asprey is a master class in metabolic control, blood flow optimization, and cellular energy. If you care about longevity, performance, or avoiding chronic disease, this is one of the most important discussions you’ll ever hear.