Component

Testosterone

Context-specific entity; species, compartment and exposure are stated on each claim.

3 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

How nutrients influence it

Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.

How nutrients reach it in more than one step

Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.

Tracing routes…

What it does

Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.

Recorded relationships

Where it participates (unsigned role)

  1. The same 12-day sodium D-aspartate study reported mean testosterone rising from 4.5 to 6.4 ng/mL; the matched-vitamin placebo group showed no corresponding increase.

    D-Aspartate → Circulating total testosterone concentration source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary full text
    experimental_model
    23 treated and 20 placebo men; 3.12 g/day sodium D-aspartate, B6/folate/B12 in both arms.
    limitations
    Not a general testosterone-boosting effect; same cohort as the LH claim, not independent evidence.
    nutrient_topic
    D-Aspartate collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · D-Aspartate
    plain_language
    The early testosterone result belongs to this specific short study.
    primary_references
    The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. · 2009 · https://pubmed.ncbi.nlm.nih.gov/19860889/ · DOI 10.1186/1477-7827-7-120

    D-Aspartate: synthesis, clearance, neural and endocrine mechanisms (2026-09-19) · lines 328–334

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · 23 treated and 20 placebo men; 3.12 g/day sodium D-aspartate, B6/folate/B12 in both arms. · source_derived_draft · unverified_draft

    ## d-aspartate-human-early-testosterone The early testosterone result belongs to this specific short study. The same 12-day sodium D-aspartate study reported mean testosterone rising from 4.5 to 6.4 ng/mL; the matched-vitamin placebo group showed no corresponding increase. Model: 23 treated and 20 placebo men; 3.12 g/day sodium D-aspartate, B6/folate/B12 in both arms. Limitations: Not a general testosterone-boosting effect; same cohort as the LH claim, not independent evidence. Evidence access: Primary full text The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. · 2009 · https://pubmed.ncbi.nlm.nih.gov/19860889/ · DOI 10.1186/1477-7827-7-120
    Complete structured claim and evidence

  2. In mouse MA-10 cells, D-aspartate alone did not meaningfully increase measured testosterone; 0.1 or 1 nM D-aspartate augmented the hCG-stimulated immunoassay signal.

    D-Aspartate → MA-10 medium testosterone immunoassay endpoint source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Mouse Leydig tumor cell line; medium electrochemiluminescence immunoassay.
    limitations
    Cell-line and assay-specific endpoint, not human testosterone efficacy.
    nutrient_topic
    D-Aspartate collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · D-Aspartate
    plain_language
    The response required the hormone context in this cell line.
    primary_references
    D-Aspartic acid stimulates steroidogenesis through the delay of LH receptor internalization in a mammalian Leydig cell line. · 2016 · https://pubmed.ncbi.nlm.nih.gov/26122485/ · DOI 10.1007/s40618-015-0333-4

    D-Aspartate: synthesis, clearance, neural and endocrine mechanisms (2026-09-19) · lines 384–390

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Mouse Leydig tumor cell line; medium electrochemiluminescence immunoassay. · source_derived_draft · unverified_draft

    ## d-aspartate-leydig-hcg-gate The response required the hormone context in this cell line. In mouse MA-10 cells, D-aspartate alone did not meaningfully increase measured testosterone; 0.1 or 1 nM D-aspartate augmented the hCG-stimulated immunoassay signal. Model: Mouse Leydig tumor cell line; medium electrochemiluminescence immunoassay. Limitations: Cell-line and assay-specific endpoint, not human testosterone efficacy. Evidence access: Primary abstract D-Aspartic acid stimulates steroidogenesis through the delay of LH receptor internalization in a mammalian Leydig cell line. · 2016 · https://pubmed.ncbi.nlm.nih.gov/26122485/ · DOI 10.1007/s40618-015-0333-4
    Complete structured claim and evidence

  3. Rat Leydig cells incubated with 0.1 or 1 mM D-aspartate showed increased measured testosterone and cAMP.

    D-Aspartate → Testosterone output in rat Leydig-cell incubation source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary full text
    experimental_model
    Isolated rat Leydig cells, 60-minute incubations.
    limitations
    cAMP involvement is supported by co-change, not an exclusive pathway demonstrated by blocking or rescue.
    nutrient_topic
    D-Aspartate collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · D-Aspartate
    plain_language
    A second rat experiment located a response in steroid-producing cells.
    primary_references
    The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. · 2009 · https://pubmed.ncbi.nlm.nih.gov/19860889/ · DOI 10.1186/1477-7827-7-120

    D-Aspartate: synthesis, clearance, neural and endocrine mechanisms (2026-09-19) · lines 376–382

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Isolated rat Leydig cells, 60-minute incubations. · source_derived_draft · unverified_draft

    ## d-aspartate-rat-leydig A second rat experiment located a response in steroid-producing cells. Rat Leydig cells incubated with 0.1 or 1 mM D-aspartate showed increased measured testosterone and cAMP. Model: Isolated rat Leydig cells, 60-minute incubations. Limitations: cAMP involvement is supported by co-change, not an exclusive pathway demonstrated by blocking or rescue. Evidence access: Primary full text The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. · 2009 · https://pubmed.ncbi.nlm.nih.gov/19860889/ · DOI 10.1186/1477-7827-7-120
    Complete structured claim and evidence

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

    Evidence, AI assistance and curation standards