How does ferrous sulfate help provide oxygen?

Ferrous sulfate is taken to treat iron deficiency anemia. In this condition, there are not enough healthy red blood cells because there is too little iron available to produce the oxygen carrying hemoglobin for the cells. We usually get iron from food, and when digested and absorbed, the iron is carried by two different proteins in the blood:
  • Hemoglobin, which carries oxygen in the blood to tissues and organs. 
  • Myoglobin, which helps muscle cells store oxygen.

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