COMPARE
PopulationHealthy adults training with resistanceAdults with below-average dietary magnesium intake
EvidenceSTRONG · MODERATEMODERATE · SMALL
RiskLOWLOW
TimeframeFour to twelve weeks of consistent daily use.Four to eight weeks before judging any effect.
The decisionOne of the few supplements with a deep evidence base. Reasonable for consistent lifters; consistency matters more than timing.Food first. Worth considering when dietary intake is genuinely low; expect a small effect, not a transformation.