supplement

PQQ

Also known as: pyrroloquinoline quinone

Chemical structure of PQQ (PubChem CID 1024)
Structure via PubChem
Half-life
Typical timing
morning
Food rule
either
Default unit
mg

Studied for

Overview

Pyrroloquinoline quinone (PQQ) is a redox cofactor found in various foods, including human breast milk. It is classified as a quinone molecule, indicating its ability to participate in oxidation-reduction reactions. While not currently recognized as a vitamin, PQQ shares some functional similarities with B vitamins due to its involvement in enzymatic processes. It was first identified as a growth factor for bacteria and later found in higher organisms. PQQ is concentrated in mitochondria, the organelles responsible for cellular energy production. Research has focused on its potential roles in antioxidant activity, mitochondrial biogenesis (the formation of new mitochondria), and cellular signaling pathways. (Sourced from PubChem, NIH ODS)

Deep dive

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Known interactions

  • Compound-pair rule
    Synergy

    Often paired for mitochondrial support via complementary mechanisms.

    Fine to pair.

  • Category rule: glp1 × supplement
    Note

    GLP-1 medications slow stomach emptying, changing how/when oral supplements absorb; rapid weight loss raises the importance of protein and micronutrients.

    Time oral supplements when nausea is lowest; prioritize protein and micronutrients; discuss with your provider.

  • Category rule: supplement × medication
    Note

    Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).

    Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.

Frequently asked

Sources referenced

- PubChem (National Library of Medicine) - NIH Office of Dietary Supplements (ODS) - Examine.com - Mayo Clinic

Stackwise compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.

Related compounds

Others in the supplement category or studied for the same goals.

Related benefits

Other compounds studied for the same benefits as PQQ.

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