This pathway is often called the nitrate–nitrite–nitric oxide pathway.
Step 1 — You ingest beet root nitrates
After taking beet root capsules, the nitrates are absorbed and enter your bloodstream.
Step 2 — Your salivary glands concentrate nitrates
Your body actively moves some nitrates into your saliva
.
Step 3 — Oral bacteria convert nitrates into nitrites
This is a key step: beneficial bacteria in your mouth convert nitrates → nitrites.
- Wellness note: This is why strong antibacterial mouthwash (right before or after taking beet root) can reduce the effect—it can disrupt the bacteria needed for conversion.
Step 4 — Your stomach and tissues convert nitrites into nitric oxide
Nitrites can become nitric oxide, especially in conditions where the body needs it (like exercise or low oxygen environments).
Step 5 — Nitric oxide signals your blood vessels to relax
This improves vascular tone and circulation, supporting oxygen delivery where it’s needed.