COMPARE
PopulationAdults with below-average dietary magnesium intakeAdults in a structured resistance-training program
EvidenceMODERATE · SMALLSTRONG · MODERATE
RiskLOWLOW
TimeframeFour to eight weeks before judging any effect.Weeks to months of consistent intake alongside training.
The decisionFood first. Worth considering when dietary intake is genuinely low; expect a small effect, not a transformation.The highest-leverage nutrition change for most people who train. Total daily intake beats nutrient timing.