Most adult men and post menopausal women do not need extra iron. As a matter of fact, iron could be harmful to your heart and arteries if you take supplement and are a man or post menopausal female. CDC reports that iron deficiency is a common nutritional problem in the United States, but the risk groups are infants under the age of two, young women, and pregnant women. Why is iron important for people in these groups? Iron is a component of blood and it helps transport oxygen from the lungs to body tissues. The main question is should you opt for supplements with or without iron to maintain your health? I'd like to read what you think!