Ferritin Normal Range

Ferritin is a protein containing approximately 20% iron. Serum ferritin levels, even in minute quantities, reflect normal iron stores in the body; thus, measuring serum ferritin is a critical diagnostic criterion for iron-deficiency anemia. So, what is the normal reference range for ferritin? Below is an explanation.

Normal Ferritin Reference Range

Under normal conditions, ferritin levels vary by sex. The normal reference range for females is 12–150 μg/L, while for males it is 15–200 μg/L. Levels below this range may indicate iron deficiency, with iron-deficiency anemia being a common cause of low ferritin. Serum ferritin is the most iron-rich protein in the human body; the liver, spleen, red bone marrow, and intestinal mucosa serve as primary sites for iron storage. Measuring serum ferritin is therefore a key indicator for assessing total body iron stores. It holds significant clinical value in monitoring hepatocellular carcinoma treatment response, diagnosing iron-deficiency anemia and iron overload, and evaluating nutritional status. Moreover, markedly elevated ferritin levels often suggest underlying chronic infection or chronic disease; thus, ferritin testing remains highly clinically relevant. If levels fall below the normal range, oral iron supplementation may be recommended. Additionally, incorporating iron-rich foods into the diet—such as dried shrimp, pork liver, and chicken blood—can help alleviate symptoms of iron deficiency.

Knowledge Extension: Key Considerations for Ferritin Testing

1. Serum iron concentration peaks in the morning and gradually declines throughout the day; therefore, blood samples should be collected in the morning after an overnight fast.

2. Prior to testing, avoid iron supplements and foods high in iron (e.g., animal livers); also avoid substances that chelate iron, such as tea.

The above provides an overview of the normal ferritin reference range. We hope this information proves helpful.