Elemental Content

The amount of the biologically active mineral ion (e.g. magnesium, calcium, zinc) provided per gram of a mineral salt or compound. When comparing magnesium forms, elemental magnesium content — not total compound weight — determines the dose of active mineral delivered. Magnesium L-Threonate, for example, provides less elemental magnesium per gram than magnesium oxide due to the additional molecular weight of the threonate ligand, but is valued for its specific neurological application.