Ferritin — Iron Storage — 60-Second Protocol
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lab guide · 2026-08-28
Ferritin drops long before anaemia shows up on a blood count.
Ferritin is a protein inside cells that stores iron, and the ferritin blood test indirectly measures how much iron the body has stored. A low result may mean iron deficiency; a high result can come from too much iron in the body, liver disease or inflammation.
The protocol
| Units | ng/mL |
| Standard range | 13–150 (women); 30–400 (men) — ranges vary by lab |
| below the lab's range | may mean iron deficiency anemia or another condition related to low iron |
| low within the lab's range | the lower the level, even within the normal range, the more likely the body does not have enough iron stored |
| above the lab's range | can be caused by too much iron in the body (hemochromatosis), liver disease or inflammation — a result for a clinician to follow up |
| Low | ask your clinician what is causing it before acting; iron from plant foods is absorbed better when eaten with vitamin C foods |
| High | do not take iron supplements; ask your clinician whether iron overload, liver disease or inflammation explains it |
| Never | do not start iron supplements without a clinician — iron can be harmful if you get too much |
Full transcript
Ferritin drops long before anaemia shows up on a blood count. It reflects the body's iron storage, and low ferritin shows up first as fatigue, brittle hair, restless legs, or shortness of breath on exertion. Under thirty is low stores, and symptoms are likely. Fifty to one hundred fifty is the target band for women, seventy to two hundred for men. Very high values point to inflammation or iron overload — not to strength. Test it, then take the number to a clinician. agegen.ai. Generate your prime age! ~~ Mr. Age
Sources
- https://medlineplus.gov/lab-tests/ferritin-blood-test/
- https://medlineplus.gov/ency/article/003490.htm
- https://ods.od.nih.gov/factsheets/Iron-Consumer/
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