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interventions / Magnesium / bone health

Does Magnesium help bone health? (Grade C evidence)

Explore current source-reported research for this exact question. These records are separate from the synthesis below; they do not update its grade or establish a recommendation.

Magnesium may modestly help bone health in specific populations (Grade C, low certainty), especially in older adults. Dose range: not standardized.

Exact question reviewed

Population
older adults
Intervention
Magnesium · not standardized
Comparator
not reported
Outcome
bone health
Time horizon
not reported

Bottom line. Magnesium may modestly help bone health in specific populations (Grade C, low certainty), especially in older adults. Dose range: not standardized. [1 SR/meta]

Direction
benefit
Magnitude
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.
Grade
C
Certainty
low
Clinical meaning
small but potentially useful
Who it applies to
older adults
Dose / form studied
not standardized
Safety
minor_with_ssri
The one limitation
Claim-specific limitation details are not available in this public record.

Reviewed not reported · Evidence last changed · Open evidence record (version 0)

⚠ Safety in context

Grade
C
what does the grade mean?
Certainty
low
what does certainty mean?

Grade C / low: hints of benefit in small trials; a well-run RCT could easily push this to B or to null.

Who it works for

Best-studied in older adults. Recorded studied dose: not standardized.

Evidence

StudyDesignRoleCite
Impact of magnesium on bone health in older adults: A systematic review and meta-analysis.peer-reviewedsupportsPMID:34666201

Why this grade

Reasoning trace

The current record stores Grade C at 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_b5-mg-bone
Claim version
not reported
Governance
legacy, not verified
Clinician review
Not yet reviewed by a licensed clinician
Last evidence search
not reported
Last editorial review
not verified

Public receipt · Machine-readable claim · Methodology

Dose & form

Studied intake: not standardized.

Full dose & form comparison for Magnesium →

How it stacks up for bone health

Grade history

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

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

Frequently asked

How long does Magnesium take to work for bone health?

This record does not report a studied onset time for Magnesium and bone health. Do not assume a typical timeframe.

What dose was used in studies of Magnesium for bone health?

The recorded studied dose for Magnesium and bone health is not standardized. This is a source detail, not a dose recommendation.

Does Magnesium work for bone health if I'm not deficient?

The recorded studied population is older adults. This field alone does not show whether deficiency or baseline status changes the effect.

Magnesium or the next-best alternative for bone health?

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 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.
Substrate's interpretation
The current reviewed record assigns Grade C at 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 Magnesium help bone health? (Grade C). https://evidencebased.info/interventions/magnesium/bone. Updated 2026-07-16.
BibTeX
@misc{substrate_entionsmagnesiumbone,
  author = {Substrate editorial},
  title  = {Does Magnesium help bone health?},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/magnesium/bone},
  note   = {Grade C, evidencebased.info}
}

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Current source-reported research

Membership uses admitted intervention and measured-outcome associations for this exact question. Different populations, preparations, comparators and timepoints remain separate. No pooling or update to the synthesis is asserted.