NFH Magnesium L-Threonate SAP 90 CapsulesMagnesium is the second most abundant intracellular cation and the fourth most abundant cation in the body. Magnesium is a cofactor in over 300 enzymatic reactions and plays an essential role in energy metabolism, glucose utilization, protein synthesis, fatty acid synthesis and degradation, and ATPase functions. It is an essential ion, helping to maintain the ionic balance of other minerals such as sodium, potassium and calcium. Magnesium deficiency