Is Ferritin useful for Allergie?

Ferritin is primarily a marker of body iron stores and is not used in routine allergy diagnostics. There is some mechanistic evidence linking iron status to immune function: iron deficiency may impair immune cell activity and potentially modulate allergic responses. However, the clinical evidence is inconsistent and insufficient to recommend ferritin as a useful biomarker for allergies. In specific contexts—such as mast cell disorders or chronic inflammation—ferritin may provide adjunctive information, but it should not be used alone to assess allergy. The evidence level is mechanistic at best; large randomized trials are lacking. For allergy diagnosis, specific IgE, skin prick tests, and clinical history remain the gold standard. Ferritin levels can also be elevated as an acute-phase reactant, so interpretation requires caution. Overall, ferritin is not a validated tool for allergy assessment.