wann hört haarausfall nach eisenmangel auf — can a microbiome test help?

Hair loss due to iron deficiency typically stops once iron stores are replenished, which usually takes 2–4 months after starting supplementation, depending on severity and individual absorption. A microbiome test cannot directly help with this, because iron deficiency is diagnosed via blood markers (ferritin, hemoglobin). While the gut microbiome influences iron absorption, commercial microbiome tests do not reliably assess iron status or pinpoint the cause of hair loss. Evidence for their utility in iron-deficiency hair loss is weak to unclear. The priority should be medically supervised iron repletion, often with oral supplements. Other causes (thyroid, hormones) should also be evaluated. A microbiome test may provide ancillary insights but is not a substitute for clinical workup. Caution: unsupervised iron intake can lead to overload and toxicity.