Transferrin is a protein found in the blood that plays a crucial role in iron transport. It binds to iron ions and carries them to various tissues and organs in the body, ensuring that cells receive the iron they need for essential functions, such as producing red blood cells. The production of transferrin occurs mainly in the liver, and its levels can indicate the body's iron status. Low transferrin levels may suggest iron deficiency, while high levels can indicate iron overload or inflammation. Monitoring transferrin is important for diagnosing and managing conditions related to iron metabolism.