About Magnesium
Magnesium is a mineral cofactor in over 300 enzymatic reactions — including energy production, DNA repair, protein synthesis, blood pressure regulation, blood sugar control, and nerve signaling. Up to 45% of Americans are magnesium-deficient, partly because serum magnesium (the standard blood test) is a poor measure: most magnesium is stored inside cells, so blood levels appear 'normal' even as intracellular stores are depleted. Low magnesium manifests as poor sleep, muscle cramps, anxiety, migraines, constipation, and heart palpitations.