Iron Deficiency Anemia: A Closer Look Amazon.com: Vitamatic Ferrous Sulfate 325 mg with Vitamin C 100 mg (65 mg Elemental Iron) High Potency Iron Supplement No Artificial Colors 250 Coated Tablets, Made in USA : Health & Household Vitamatic Ferrous Fumarate 325 mg + Vitamin C 100 mg (104 mg Elemental Iron) High Potency Iron Supplement Gentle on Stomach, 120 Tablets, Made in USA Oral iron therapy: Current concepts and future prospects for improving efficacy and outcomes Iron preparations are used to prevent or treat iron deficiency anemia. Oral iron preparations contain different amounts of elemental iron. Dosing is based on elemental iron quantity. Overall there is no iron Oral iron supplementation in iron deficient women: How much and how often? ScienceDirect