Figure 2. Dose-response relationship between dietary magnesium intake and serum magnesium concentrations and the risk of total CVD events.

Relative risk (solid line) with 95% confidence interval (long dashed lines) for the association of dietary magnesium intake and serum magnesium concentrations with risk of total CVD events in a restricted cubic spline random-effects meta-analysis. The short dashed line represents the simpler linear model. The lowest values of 152 mg/d of dietary magnesium and 1.44 mEq/L of serum magnesium were used to re-estimate all relative risks.