Evidence check: Eisen-Ferritin Selbsttest in the context of longevity

The MyBody-X iron/ferritin self-test measures ferritin levels in blood, a marker of body iron stores. In the context of longevity, ferritin is relevant because both iron deficiency and overload are linked to oxidative stress and aging. However, this is a lifestyle test, not a medical diagnostic device. The evidence for direct longevity optimization based solely on a single ferritin reading is weak: one snapshot cannot capture dynamic processes like inflammation or hereditary hemochromatosis. Elevated ferritin may also be due to acute inflammation, not iron overload. The test can provide a general orientation but should not replace clinical evaluation if iron disorders are suspected. For meaningful longevity insights, repeated measurements and additional biomarkers (e.g., CRP, transferrin saturation) are necessary. Evidence grade: practice/mixed. Sources: No specific studies in context; based on MyBody-X product descriptions.