What is Ferritin and Why is it Considered a Critical Marker for Iron Status?
Ferritin is your body’s iron storage and an early sign of deficiency. Low levels can cause fatigue and brain fog before anemia, making testing important.
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Iron Deficiency vs Anemia: Key Differences Explained
Iron deficiency can cause fatigue and brain fog before anemia. Low ferritin is often missed, so early symptoms and proper testing help enable faster diagnosis.
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