What should I know about Ferritin Labor?

Ferritin is a protein that stores iron, and its blood level reflects your body's iron reserves. Low ferritin indicates iron deficiency, which can cause fatigue, pallor, and poor concentration. However, ferritin is also an acute-phase reactant: it rises during inflammation, infection, or chronic disease, potentially masking a true deficiency. A normal ferritin does not rule out functional iron deficiency, especially in athletes or people with chronic inflammation. The MyBody-X finger-prick test is a screening tool, not a diagnostic test. Capillary samples may differ from venous blood. If results are abnormal or symptoms persist, see a doctor for a complete blood count, transferrin, and CRP. High ferritin can also signal iron overload (hemochromatosis), but further testing is needed. Never interpret a single ferritin value in isolation – always consider the full clinical picture.