---
title: "PQQ (Pyrroloquinoline Quinone) — Evidence & Citations | Magellan"
description: "Natural sources, dosing and cited research for PQQ (Pyrroloquinoline Quinone)."
url: "https://magellanlongevity.com/m/pqq.md"
canonical: "https://magellanlongevity.com/m/pqq.html"
html: "https://magellanlongevity.com/m/pqq.html"
type: "molecule"
slug: "pqq"
citations: 0
updated: 2026-08-11
author: "Gabriel Radu, DO"
author_credentials: "Physiatrist (PM&R). NY medical license 275110. NPI 1376861765."
publisher: "Magellan Longevity"
content_format: "markdown"
---

# PQQ (Pyrroloquinoline Quinone)

[Home](https://magellanlongevity.com/) › Molecules › PQQ (Pyrroloquinoline Quinone)

**HTML version:** https://magellanlongevity.com/m/pqq.html · **In the Magellan app:** https://magellanlongevity.com/#/search/PQQ%20(Pyrroloquinoline%20Quinone)

## Where it comes from without a bottle

Food, exercise and behaviour routes to the same pathway, each with its citation.

| Natural source | How it works | Citation |
| --- | --- | --- |
| Fermented soy (natto), green tea, vegetables | Free PQQ is present in essentially all foods tested; diet is a meaningful source of body PQQ. | Biochem J 1995 [PMID 7733865](https://pubmed.ncbi.nlm.nih.gov/7733865/) |
| Eggs & milk | PQQ is detectable in everyday animal foods like egg yolk and milk. | Biochem Biophys Res Commun 1993 [PMID 8389143](https://pubmed.ncbi.nlm.nih.gov/8389143/) |

### What those papers actually say

1. **Fermented soy (natto), green tea, vegetables**
   Biochem J 1995 · [PMID 7733865](https://pubmed.ncbi.nlm.nih.gov/7733865/) · [DOI 10.1042/bj3070331](https://doi.org/10.1042/bj3070331)

   > Free PQQ could be detected in every sample... it is probable that PQQ existing in human tissues is derived, at least partly, from the diet.

2. **Eggs & milk**
   Biochem Biophys Res Commun 1993 · [PMID 8389143](https://pubmed.ncbi.nlm.nih.gov/8389143/) · [DOI 10.1006/bbrc.1993.1581](https://doi.org/10.1006/bbrc.1993.1581)

   > PQQ could be detected in eggs, skim milk and milk... (e.g., egg yolk: 7.0 ng/ml).

## Structured data

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## Related on Magellan Longevity

- [Evidence-based longevity supplements](https://magellanlongevity.com/longevity-supplements.md)
- [Longevity research map](https://magellanlongevity.com/longevity-research-map.html)
- [Pathway universe](https://magellanlongevity.com/pathway-universe.html)

## Scope and disclosures

Educational information, not medical advice. Nothing here is intended to diagnose, treat, cure, or prevent any disease. Talk to your physician before starting any supplement or device, especially if you are pregnant, nursing, or taking medication.

Editorial firewall: evidence grades are assigned from the published research and are independent of any affiliate commission. As an Amazon Associate, Magellan Longevity earns from qualifying purchases.

Reviewed for accuracy by a board-certified physician (DO).