Evidence check: Ferritin Eisenmangel in the context of Fruchtbarkeit

Ferritin is a storage protein for iron, and low ferritin (iron deficiency) is often discussed in fertility contexts. In women, iron deficiency may impair ovulation and implantation because iron is critical for cell division and oxygen transport. In men, some studies suggest negative effects on sperm quality. The evidence is mostly observational; there are no large RCTs specifically linking ferritin levels to fertility outcomes as a standalone marker. A ferritin level below 30 µg/L indicates iron deficiency, but interpretation requires clinical context including hemoglobin, transferrin saturation, and inflammation markers. A consumer DNA test for ferritin is not useful because ferritin is regulated by diet, blood loss, and inflammation, not genetics alone. MyBody-X may offer biomarker tests, but their predictive value for fertility is limited. For couples struggling with infertility and suspected iron deficiency, a medical workup with complete blood count and ferritin measurement is the gold standard.