A nurse is caring for a client who has a new prescription for ferrous sulfate tablets twice daily for iron-deficiency anemia. The client asks the nurse why the provider instructed that she take the ferrous sulfate between meals. Which of the following responses should the nurse make?

A. Constipation is a common side effect of ferrous sulfate, but taking it between meals does not prevent constipation. B. Ferrous sulfate is not associated with esophagitis when taken with food. This statement is incorrect. C. Iron is best absorbed on an empty stomach because food, especially dairy products, tea, or coffee, can inhibit iron absorption. Taking it between meals maximizes bioavailability. D. Taking ferrous sulfate with food usually decreases gastrointestinal upset, including nausea, so this statement is incorrect.