What should I know about eisenmangel diffuser haarausfall?

Iron deficiency is a well-established cause of diffuse hair loss, especially in premenopausal women. Low ferritin levels (below 30–40 ng/mL) can disrupt the hair growth cycle, leading to increased shedding. Diagnosis requires blood tests for ferritin, serum iron, and transferrin saturation. Supplementation should be guided by a physician to avoid iron overload (risk of hemochromatosis). Consumer home tests, such as MyBody-X's Fitness Check, may include some biomarkers but do not explicitly list ferritin; other tests might measure iron status. However, a single home test cannot replace clinical evaluation – iron deficiency may signal underlying blood loss or malabsorption. The evidence linking iron deficiency to hair loss is human-strong, but the utility of direct-to-consumer tests for this purpose is marketing-driven and unclear. For persistent hair loss, consult a doctor for proper diagnosis and treatment (e.g., oral iron).