An estimated 50% of Americans are deficient in magnesium, a mineral essential for sleep, muscle recovery, heart health, and over 300 enzymatic reactions in the body.

Signs of Deficiency

Best Forms of Magnesium

Top Supplements

Momentous Magnesium L-Threonate ($40), Natural Calm Magnesium Glycinate ($25), and Thorne Magnesium Bisglycinate ($30) are the highest-quality options backed by third-party testing.