wieviel eisen bei haarausfall — what does this mean exactly?

The question 'wieviel eisen bei haarausfall' translates to 'how much iron for hair loss?' It asks about the appropriate iron dosage to treat or prevent hair loss. Iron deficiency is a well-known cause of diffuse hair loss (telogen effluvium). However, not all hair loss is due to iron. Supplementation is only indicated when deficiency is confirmed via blood tests (serum ferritin <30–40 ng/mL, transferrin saturation <20%). Dosage depends on deficiency severity: mild cases often 50–100 mg elemental iron daily; severe cases require higher doses under medical supervision. Iron overload is toxic (liver, heart damage). Evidence for iron in non-deficient individuals is weak. Consumer DNA tests (e.g., MyBody-X) may flag genetic variants in iron metabolism (e.g., HFE), but cannot replace lab diagnostics. Conclusion: Do not self-prescribe high-dose iron; first test ferritin and transferrin.