Myths vs facts: Ferritin Eisenmangel and Fruchtbarkeit

A common myth is that only full-blown anemia (low hemoglobin) affects fertility. In fact, isolated low ferritin (iron deficiency without anemia) can impair egg maturation and ovulation, because iron is crucial for many enzymatic processes. Observational studies link iron deficiency to higher risk of anovulation and poorer outcomes in assisted reproduction. However, evidence is mostly observational; no large randomized trials prove causality. Another myth: every woman trying to conceive should take iron supplements. That is false – iron overload (hemochromatosis) can also harm fertility. The fact is: ferritin below 30 ng/mL indicates iron deficiency, and targeted replenishment (after medical workup) can be beneficial if deficiency is confirmed. Caveat: ferritin is an acute-phase reactant; inflammation can elevate it and mask deficiency. Therefore, CRP should be measured alongside. MyBody-X tests can measure ferritin, but interpretation requires a physician. In summary, iron deficiency is a relevant but not sole factor in fertility issues.