{"claimId":"clm_ec_b5-mg-bone","version":1,"status":"current","verdict":"Magnesium for bone health: Grade C at low certainty. Systematic review in older adults: higher magnesium status/intake is associated with greater bone mineral density and, in some studies, lower fracture risk. Evidence is largely observational, so the association does not establish that supplementation prevents fractures.","direction":"benefit","magnitude":{"metric":"other","value":null,"unit":"","ci95":null,"humanReadable":"Systematic review in older adults: higher magnesium status/intake is associated with greater bone mineral density and, in some studies, lower fracture risk. Evidence is largely observational, so the association does not establish that supplementation prevents fractures.","baselineAbsoluteRisk":null},"certainty":"low","clinicalMeaning":"small_but_potentially_useful","applicability":{"appliesTo":["older adults"],"doesNotApply":["children"],"unknown":["pregnancy"]},"safetyQualifiers":["minor_with_ssri"],"evidenceBundleId":"eb_ec_b5-mg-bone","citations":[{"pmid":"34666201","design":"peer-reviewed"}],"reviewedBy":{"name":"Substrate editorial","credential":"Independent research collective"},"reviewedAt":"2026-07-16T15:19:31.286Z","dateModified":"2026-07-16T15:19:31.286Z","methodologyVersion":"v1","methodologyDoi":"https://doi.org/10.5281/zenodo.21364236","canonicalUrl":"https://evidencebased.info/interventions/magnesium/bone","attribution":"Substrate (evidencebased.info), claim clm_ec_b5-mg-bone v1, reviewed 2026-07-16","license":"CC-BY-4.0 — attribution with link required"}