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.
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
- Safety
- moderate_with_ssri
- The one limitation
- Sample sizes are small in most included trials; effect sizes may shrink with larger studies.
Reviewed · Evidence last changed · Claim clm_ec_b3-ash-testosterone v1
⚠ Safety in context
- moderatewith SSRI: Ashwagandha with an SSRI may carry additive sedative/serotonergic risk; evidence is limited. full interaction →
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. Effective doses cluster around not standardized across the small pool of trials.
Evidence
| Study | Design | Cite |
|---|---|---|
| Withania somnifera (Indian ginseng) in male infertility: An evidence-based systematic review and meta-analysis. | peer-reviewed | PMID:30466985 |
Why this grade
Reasoning trace
Grade D at very-low certainty. The grade reflects the direction and size of the effect across the 1 publishable source above; certainty reflects heterogeneity, sample sizes, and design quality. What would move it upward: additional well-powered RCTs in the target population that replicate the effect at similar doses. What would move it down: a large null trial, discovery of publication bias, or a retraction of a keystone study.
Dose & form
Studied intake: not standardized across the small pool of trials.
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
- Grade D at very-low certainty — the direction and size the studies converge on, as our reading of the corpus.
- 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
Reuse under CC-BY 4.0 with attribution to evidencebased.info.
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}
}Found something wrong on this page? Report an error →