Elemental Iron Content in Ferrous Sulfate

Standard Conversion

The British Society of Gastroenterology guidelines state that ferrous sulfate 200 mg tablets contain 65 mg of elemental iron, which represents approximately 32.5% elemental iron content by weight 1, 2
Ferrous sulfate 200 mg contains 65 mg of elemental iron, as documented in the British Society of Gastroenterology guidelines 1, 2

The American Gastroenterological Association recommends one ferrous sulfate 200 mg tablet daily, providing 65 mg elemental iron, as the optimal starting dose for iron deficiency anemia treatment 2
Doses of 60 mg elemental iron stimulate hepcidin levels, reducing subsequent iron absorption by 35-45% when taken multiple times daily, according to the British Society of Gastroenterology 1
The recommended therapeutic range is 50-100 mg elemental iron once daily, making a single 200 mg ferrous sulfate tablet an ideal choice, as stated by the British Society of Gastroenterology 1, 2

Ferrous sulfate 325 mg contains 105 mg elemental iron, as compared to ferrous sulfate 200 mg which contains 65 mg elemental iron 1
Ferrous fumarate 210 mg contains 69 mg elemental iron, while ferrous gluconate 300 mg contains only 37 mg elemental iron 1

The British Society of Gastroenterology guidelines recommend that when prescribing iron supplementation, both the salt form and the dose should be specified, as the elemental iron content varies significantly between different iron preparations 1, 2