Can Ferritin Eisenmangel help with sleep?

Whether ferritin (iron deficiency) can help with sleep requires nuance. Low ferritin (iron deficiency) is linked to sleep disturbances, especially Restless Legs Syndrome (RLS), which impairs falling and staying asleep. Clinical evidence indicates that iron supplementation in deficient individuals can reduce RLS symptoms and improve sleep quality. However, iron is not a general sleep aid: if ferritin levels are normal, extra iron provides no benefit and may cause harm (iron overload, oxidative stress). The evidence is moderate, based on human studies and meta-analyses, but not all sleep issues stem from iron deficiency. Before supplementing, a ferritin test (fasting, ideally with CRP to rule out inflammation) is essential. Home tests like MyBody-X can offer initial data but do not replace medical diagnosis. Always consider other factors (stress, hormones, sleep hygiene) when addressing sleep problems.