Magnesium is involved in over 300 enzymatic reactions in the body, yet studies suggest that up to 50% of Americans do not get adequate amounts from their diet. The modern food supply, depleted soils, and high-stress lifestyles all contribute to widespread deficiency.
Not All Magnesium Is Created Equal
The supplement aisle is filled with different forms of magnesium, and the differences matter enormously. Magnesium oxide, the cheapest and most common form, has only 4% bioavailability. That means your body absorbs almost nothing from it.
Magnesium glycinate, on the other hand, is chelated — bound to the amino acid glycine — which dramatically improves absorption and makes it gentle on the stomach. Glycine itself has calming properties, making this form ideal for sleep and relaxation support.
Signs You Might Need More Magnesium
Common symptoms of magnesium insufficiency include muscle cramps, poor sleep quality, anxiety, headaches, and fatigue. If you experience several of these regularly, magnesium supplementation may be worth discussing with your healthcare provider.