How much iron does a 300 mg tablet of ferrous sulfate contain?

The correct amount of iron in a 300 mg tablet of ferrous sulfate can be determined by understanding the composition of ferrous sulfate, which is commonly used as a supplement for iron deficiency anemia. Ferrous sulfate is typically composed of approximately 20% elemental iron by weight.

To calculate the elemental iron content, you take 20% of 300 mg. This results in:

300 mg * 0.20 = 60 mg of elemental iron.

This demonstrates why the answer indicating 60 mg is correct; it reflects the standard conversion from ferrous sulfate to its elemental iron content. Other options do not align with this calculation based on the common elemental composition established in pharmacological references. Therefore, 60 mg accurately represents the amount of iron provided in a 300 mg ferrous sulfate tablet.