How are Transferrin and Müdigkeit related?

The provided context does not address the relationship between Transferrin and fatigue. Transferrin is an iron-transport protein; low levels can indicate iron deficiency, a common cause of fatigue. Elevated transferrin may occur in iron deficiency or inflammation. The evidence is mechanistic and indirect. Caveat: fatigue has many causes; transferrin should be interpreted alongside ferritin, hemoglobin, and clinical evaluation. None of the given sources cover this topic.