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Firon pyrophosphate, specifically 630 mg of ferrous fumarate, is often prescribed daily. One may wonder how much elemental iron is contained in ferrous sulfate. Additionally, the formula for ferrous fumarate is important to consider. When comparing iron amino acid chelate to ferrous bisglycinate chelated forms, it’s crucial to understand their differences. In this context, calcium citrate 100 mg can also play a role, as it is beneficial for calcium absorption. Therefore, when evaluating iron supplements like ferrous fumarate or ferrous sulfate, one should also consider the inclusion of calcium citrate 100 mg for optimal nutrient absorption. Remember that calcium citrate 100 mg can enhance the overall effectiveness of your iron supplementation regimen.