Substrate ·evidence-based
interventions / Ashwagandha / testosterone / hormone levels

Does Ashwagandha help testosterone / hormone levels? (Grade D evidence)

For testosterone / hormone levels, Ashwagandha did not beat placebo in the available trials (Grade D, very-low certainty), especially in men with subfertility/infertility.

Exact question reviewed

Population
men with subfertility/infertility
Intervention
Ashwagandha · not standardized across the small pool of trials
Comparator
not reported
Outcome
testosterone / hormone levels
Time horizon
not reported

Bottom line. For testosterone / hormone levels, Ashwagandha did not beat placebo in the available trials (Grade D, very-low certainty), especially in men with subfertility/infertility. [1 RCT]

Direction
null
Magnitude
Systematic review of 4 trials (only 1 RCT, mostly uncontrolled before-after): testosterone up 17%, LH up 34%, semen concentration +13.57 million/ml; authors call their own evidence "too limited to provide sufficiently robust evidence".
Grade
D
Certainty
very_low
Clinical meaning
trivial
Who it applies to
men with subfertility/infertility
Dose / form studied
not standardized across the small pool of trials
Safety
moderate_with_ssri
The one limitation
Claim-specific limitation details are not available in this public record.

Reviewed · Evidence last changed · Claim clm_ec_b3-ash-testosterone v0

⚠ Safety in context

Grade
D
what does the grade mean?
Certainty
very-low
what does certainty mean?

Grade D / very-low: little evidence, and what exists is unfavourable — treat claims here with strong scepticism.

Who it works for

Best-studied in men with subfertility/infertility. Recorded studied dose: not standardized across the small pool of trials.

Evidence

StudyDesignRoleCite
Withania somnifera (Indian ginseng) in male infertility: An evidence-based systematic review and meta-analysis.peer-reviewedsupportsPMID:30466985

Why this grade

Reasoning trace

The current record stores Grade D at very-low certainty and links 1 publishable source. A claim-specific domain-by-domain grading rationale is not available in this public record, so no reason for upgrading or downgrading is inferred here.

Audit and version

Claim ID
ec_b3-ash-testosterone
Claim version
not reported
Governance
legacy, not verified
Last evidence search
not reported
Last editorial review
2026-07-16T07:10:11.263Z

Public receipt · Machine-readable claim · Methodology

Dose & form

Studied intake: not standardized across the small pool of trials.

How it stacks up for testosterone / hormone levels

Grade history

No grade changes yet. Initial grade assigned; re-reviewed on every 6 months (Grade C+) — next review by . Methodology v1.

Re-review cadence: every 6 months (Grade C+) · next scheduled by · methodology v1.

Frequently asked

How long does Ashwagandha take to work for testosterone / hormone levels?

Trials of Ashwagandha for testosterone / hormone levels typically report effects within 2–4 weeks, though individual response varies. Studies rarely find benefit inside 1 week for chronic outcomes.

What dose was used in studies of Ashwagandha for testosterone / hormone levels?

Studied doses for Ashwagandha in testosterone / hormone levels trials cluster around not standardized across the small pool of trials. See the dose block for the specific range and how it varies by form.

Does Ashwagandha work for testosterone / hormone levels if I'm not deficient?

The effect concentrates in men with subfertility/infertility. If your baseline is normal, expect a smaller effect than the trial averages.

Ashwagandha or the next-best alternative for testosterone / hormone levels?

See the compare block above for the head-to-head with the most-cited alternative. Grade + certainty differences matter more than any single trial.

Related

What this is — and is not

Evidence description
Systematic review of 4 trials (only 1 RCT, mostly uncontrolled before-after): testosterone up 17%, LH up 34%, semen concentration +13.57 million/ml; authors call their own evidence "too limited to provide sufficiently robust evidence".
Substrate's interpretation
The current reviewed record assigns Grade D at very-low certainty. A domain-by-domain rationale is shown only when recorded.
Discuss with a clinician
If you're on medication or have a condition that changes the calculus, bring the interaction & population blocks above to your pharmacist or prescriber before deciding.
Individualized medical advice
Not provided here or on any Substrate surface (API, agent tool, embed) — see YMYL policy.

Cite this page

Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.

Plain-text citation
Substrate. Does Ashwagandha help testosterone / hormone levels? (Grade D). https://evidencebased.info/interventions/ashwagandha/testosterone. Updated 2026-07-16.
BibTeX
@misc{substrate_wagandhatestosterone,
  author = {Substrate editorial},
  title  = {Does Ashwagandha help testosterone / hormone levels?},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/ashwagandha/testosterone},
  note   = {Grade D, evidencebased.info}
}

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