Iron is an essential mineral, the average person contains about four to five grams of iron of which 60-70% is in the blood. Absorption of Iron is aided by Vitamin C. Fortified cereals always contain Iron. You should exercise caution before taking an iron supplement, as you may already have a sufficient quantity in your diet.
Iron plays a major role in transporting oxygen from the lungs to the organs; then removes carbon dioxide from them. Other benefits include improved energy levels and better mental agility.