{"claimId":"clm_ec_iron_energy","version":1,"status":"current","verdict":"Iron for energy / fatigue: Grade A at high certainty. reliably reduces fatigue when iron deficiency / IDA is present; no benefit when iron-replete","direction":"benefit","magnitude":{"metric":"other","value":null,"unit":"","ci95":null,"humanReadable":"reliably reduces fatigue when iron deficiency / IDA is present; no benefit when iron-replete","baselineAbsoluteRisk":null},"certainty":"high","clinicalMeaning":"moderate","applicability":{"appliesTo":["iron-deficient adults (esp. menstruating women)"],"doesNotApply":["children"],"unknown":["pregnancy"]},"safetyQualifiers":[],"evidenceBundleId":"eb_ec_iron_energy","citations":[{"pmid":"10000007"}],"reviewedBy":{"name":"Substrate editorial","credential":"Independent research collective"},"reviewedAt":"2026-07-14T00:00:00Z","dateModified":"2026-07-14T00:00:00Z","methodologyVersion":"v1","methodologyDoi":"https://doi.org/10.5281/zenodo.21364236","canonicalUrl":"https://evidencebased.info/interventions/iron/energy","attribution":"Substrate (evidencebased.info), claim clm_ec_iron_energy v1, reviewed 2026-07-14","license":"CC-BY-4.0 — attribution with link required"}