What role does Eisen-Ferritin Selbsttest play in allergy?

The MyBody-X iron-ferritin self-test is designed to assess iron status (ferritin as a storage protein), not to diagnose allergies. An indirect link exists because iron deficiency can impair immune function and potentially exacerbate allergic responses—for example, through disrupted T-cell activity or increased histamine release. However, there is no robust evidence that a ferritin self-test alone can predict or treat allergies. Clinical relevance remains unclear, as ferritin levels can be skewed by inflammation (e.g., during allergic reactions). The test provides a single lab value that must be interpreted in a medical context. Self-testing without physician guidance is not recommended. Evidence: practice/unclear.