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Nutritional
Ferritin
Iron storage protein — reflects total body iron stores and serves as an inflammatory marker.
Optimal Range
40-100 ng/mL (men) · 30-80 ng/mL (women)
Why It Matters
Both low and high ferritin are problematic. Low ferritin causes fatigue and impaired oxygen transport. High ferritin (>200) may indicate iron overload, inflammation, or liver disease — all of which accelerate aging through oxidative stress.