{"claimId":"clm_ec_b3-ash-testosterone","version":1,"status":"current","verdict":"Ashwagandha for testosterone / hormone levels: Grade D at very-low certainty. 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\".","direction":"null","magnitude":{"metric":"other","value":null,"unit":"","ci95":null,"humanReadable":"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\".","baselineAbsoluteRisk":null},"certainty":"very_low","clinicalMeaning":"trivial","applicability":{"appliesTo":["men with subfertility/infertility"],"doesNotApply":["children"],"unknown":["pregnancy"]},"safetyQualifiers":["moderate_with_ssri"],"evidenceBundleId":"eb_ec_b3-ash-testosterone","citations":[{"pmid":"30466985","design":"peer-reviewed"}],"reviewedBy":{"name":"Substrate editorial","credential":"Independent research collective"},"reviewedAt":"2026-07-16T07:10:11.263Z","dateModified":"2026-07-16T07:10:11.263Z","methodologyVersion":"v1","methodologyDoi":"https://doi.org/10.5281/zenodo.21364236","canonicalUrl":"https://evidencebased.info/interventions/ashwagandha/testosterone","attribution":"Substrate (evidencebased.info), claim clm_ec_b3-ash-testosterone v1, reviewed 2026-07-16","license":"CC-BY-4.0 — attribution with link required"}