Magnesium Glycinate with BioPerine® - 60 Veg CapsulesHighly Absorbable Form Magnesium glycinate utilizes magnesium bound to the amino acid glycine, which facilitates intestinal absorption. Magnesium is a mineral that is critical for energy production and metabolism, muscle contraction, nerve impulse transmission, and bone mineralization. It is a required cofactor for an estimated 300 enzymes. Among the processes that require magnesium are fat and protein production, as well as glucose metabolism.