Is Ferritin useful for allergy?

Ferritin is an iron storage protein primarily used to assess iron status. In allergology, ferritin has no established diagnostic role. Some studies suggest links between iron deficiency and altered immune responses, but evidence for ferritin as a direct allergy marker is weak. The provided context contains no specific information linking ferritin to allergies. Therefore, ferritin's utility for allergy is limited and should not be used as a standalone biomarker. For suspected allergies, specific IgE tests or skin prick tests are indicated.