was tun bei eisenmangel — what can you do yourself?

For iron deficiency, you can take several steps yourself, but it's important to understand the limits of self-management. First, a medical diagnosis is essential because symptoms like fatigue, pallor, and brittle nails can have other causes. A blood test (ferritin, hemoglobin, transferrin saturation) provides clarity. Self-help includes: iron-rich foods such as red meat, liver, legumes, whole grains, nuts, and dark leafy greens. Absorption is enhanced by consuming vitamin C simultaneously (e.g., lemon juice on spinach). Inhibitors like coffee, tea, or dairy should be separated by at least 1–2 hours. If deficiency is confirmed, iron supplements (e.g., ferrous sulfate) may be useful, but only under medical supervision because overdose is toxic (iron overload, liver damage). The underlying cause (e.g., blood loss, malabsorption) must also be addressed. DNA tests for iron metabolism genes (e.g., HFE) have limited utility for the general population and do not replace clinical diagnostics. Microbiome tests may hint at absorption issues but are not diagnostic. In summary: dietary changes and supplementation guided by a physician are the most effective approaches; self-tests alone are insufficient.