What role does Eisen-Ferritin Selbsttest play in Müdigkeit?

The iron-ferritin self-test measures ferritin, a marker of iron stores. Low ferritin can indicate iron deficiency, a common cause of fatigue, especially in menstruating women, vegetarians, or those with chronic blood loss. However, the test alone does not provide a full diagnosis: fatigue has many causes (sleep deprivation, stress, thyroid disorders, vitamin deficiencies), and a normal ferritin level does not always rule out iron deficiency (functional iron deficiency). Elevated ferritin may indicate inflammation or hemochromatosis, which can also cause fatigue. The provided context contains no specific studies or product details on this test. Therefore, the evidence is unclear. The test can serve as a screening tool but should not replace medical interpretation. At-home blood sampling carries risks (e.g., bruising, infection). For persistent fatigue, a medical workup including complete blood count, iron panel, vitamin B12, vitamin D, and thyroid function is recommended.