There are about 65 mg of elemental iron in a 325 mg ferrous sulfate tablet. Ferrous gluconate is 12% elemental iron, while ferrous fumarate is 33% elemental iron. “These formulations all work ...
Typically, each tablet contains 65 mg of elemental iron ... and can manage these simple side effects can go for it. Ferrous fumarate contains a higher concentration of elemental iron—typically ...