Iron
Iron is the amount of serum iron bound to transferrin and represents ~⅓ of the total iron binding capacity of transferrin. By itself, it is a relatively poor marker of iron status. May be elevated due to hemochromatosis and other genetic conditions, haemolytic anaemia, liver damage, and Vit B6 deficiency. It may be decreased due to poor iron intake, poor absorption, chronic blood loss, chronic disease or infection, and progesterone birth control pills.