− | Iron was recognised as an essential dietary component more than 100 years ago. Its primary role is to serve as a '''component of haemoglobin and myoglobin''' which are the key for the transport and movement of oxygen around the body. It also functions in a number of enzymes such as the cytochromes, that are key regulators in energy metabolism. | + | Iron was recognised as an essential dietary component more than 100 years ago. Its primary role is to serve as a '''component of [[Erythrocytes#Function|haemoglobin]] and myoglobin''' which are the key for the transport and movement of oxygen around the body. It also functions in a number of enzymes such as the cytochromes, that are key regulators in energy metabolism. |