Magnesium Bisglycinate is a well-tolerated, lightly sweetened powder.* It supports sleep and helps relax smooth and skeletal muscle.* Magnesium is essential for the health of the heart and blood vessels, brain, bones, lungs, and pancreas.* As a cofactor for more than 600 enzymes, magnesium supports numerous mechanisms of action; for example, it is a cofactor in numerous enzymatic reactions necessary for energy production.* Other magnesium mechanisms of action include modulating intracellular electrical activity and improving endothelial-dependent vasodilation, which support heart and lung health.* Thorne's Magnesium Bisglycinate is formulated for optimal absorbability.* Its molecular structure also reduces the laxative effect typically seen in magnesium supplements.* Thorne's Magnesium Bisgylcinate is NSF Certified for Sport®. NSF Certified. *