Iron / Vitamins
Ferritin
What it means
Your body's iron storage protein — think 'iron fuel tank'. Low ferritin is the earliest sign of iron deficiency, even before anaemia shows.
Typical normal range
30–400 ng/mL
Reference ranges vary by lab, age, sex, and pregnancy. Always check the range on your own report.
Have Ferritin on your report?
Upload the full report and MedFast.AI will explain every value — in your language — and give you the right questions to ask your doctor.
Related terms in Iron / Vitamins
This is a plain-language explanation for patients, not clinical advice. AI can be wrong. Always confirm with your doctor.