About This Item Thorne's Magnesium Bisglycinate is a dietary supplement that provides a highly absorbable form of magnesium, which supports muscle, bone, and cardiovascular health. Ingredients Magnesium (Bisglycinate), Citric Acid, Monk Fruit. Why We Chose This Thorne's Magnesium Bisglycinate is chosen for its superior absorption rate and minimal gastrointestinal side effects, making it highly effective for those needing magnesium supplementation. It's ideal for supporting various health aspects, including muscle relaxation, bone health, and cardiovascular function.