Your bloodwork came back fine. So why do you still wake up tired?
Here's what the doctor didn't check: the one molecule that controls your blood flow, your energy, and how you feel when your feet hit the floor.
Dr. Nathan Bryan spent 25 years on it. In 8 questions he'll show you where you're losing it, and the one thing to do first.
8 questions. 2 minutes. No needles. No appointment.
Dr. Nathan S. Bryan — 25+ years of NO research · 100+ peer-reviewed publications · 5 books · Dozens of issued US and international patents
Research Published In
Nature Chemical BiologyPNASCirculationHypertensionFree Radical Biology & Medicine
You already tried
Your body makes nitric oxide three ways. The score shows you which one is breaking down.
01
Blood vessels
Your age and how much you move. Your blood vessels make their own nitric oxide, and moving is what turns it on. Not workouts. A walk counts. This is the part that gets better fastest.
02
Mouth
This is the one almost nobody has heard of. The greens and beets you eat become nitric oxide because of bacteria on your tongue. Use a germ-killing mouthwash every morning and you wipe them out. Studies show it lowers the nitric oxide in your blood. You could be doing everything right and your mouthwash is killing it every morning.
03
Sleep and stress
Sleep and stress. Short nights and stressful days use up your nitric oxide before it can help you. Age is the one thing you can't change. Sleep and stress you can change this week.
"By age 40, we have lost about 50% of our ability to produce nitric oxide in our blood vessels."
Dr. Nathan Bryan, Diary of a CEO, April 2025
That is his interview line. It is not the number this score calculates.
Your Three Parts
AgeAfter 30
WalksHambrecht '03
PlateKapil '10
RinseTribble '19
HeartBryan '06
NightEverson '05
Day
Acid pillBryan '18
The first sign and symptom of nitric oxide deficiency is usually erectile dysfunction. We call that the canary in the coal mine.
Dr. Nathan Bryan
Diary of a CEO
You cannot destroy the oral microbiome without clinical consequences.
Dr. Nathan Bryan
The Primal Podcast
Nitric oxide is the master signal that tells blood vessels to open, mitochondria to produce energy, and the brain to function at full capacity.
Dr. Nathan Bryan
Deep Wealth Podcast
Without nitric oxide, your body cannot heal.
Dr. Nathan Bryan
Myers Detox Podcast
93% of Americans are metabolically unfit.
Dr. Nathan Bryan
Deep Wealth Podcast
It's the longevity molecule.
Dr. Nathan Bryan
American Muslim Today
If you're killing your oral microbiome and blocking stomach acid, your body can't make nitric oxide -- no matter how healthy your diet is.
Dr. Nathan Bryan
American Muslim Today
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Hold on.
Reading your answers...
Checking all three parts...
Finding where you're losing it...
Matching your first move.
Your Results
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NO Score
This number comes from your answers. It is not a blood test.
Your first move
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Important: These statements have not been evaluated by the FDA. This assessment is educational, not medical advice. N1O1 products are not intended to diagnose, treat, cure, or prevent any disease.