High Ferritin: What It Means for Your Health
Ferritin is the protein that stores iron, and it also rises whenever the body is inflamed or the liver is under strain. That double role is why a high result needs one more test before anyone calls it iron overload.
Based on EASL 2022 & BSH 2018 guidance
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A high ferritin does not, on its own, mean you have too much iron. Ferritin also rises with inflammation, fatty liver, alcohol, metabolic syndrome, kidney disease and some cancers (British Society for Haematology, 2018). Transferrin saturation tells them apart. EASL's 2022 haemochromatosis guideline treats ferritin above 200 ng/mL in women or 300 ng/mL in men, together with transferrin saturation above 45% (women) or 50% (men), as the pattern that calls for an HFE gene test in people of European origin. In haemochromatosis, severe liver scarring is negligible below 1,000 ng/mL; above it, a doctor should assess the liver. FixFirst flags ferritin against the same sex-specific lines and reads it next to your CRP, liver enzymes and glucose from the same report.
When a ferritin result counts as high
ng/mL and µg/L are the same number. These are the lines FixFirst uses, taken from EASL 2022.
| Ferritin (ng/mL) | Women | Men | What it means |
|---|---|---|---|
| Up to 200 | Not flagged | Not flagged | Within range on the high side. Below 30 is flagged low: see low ferritin. |
| Above 200 to 300 | Flagged high | Not flagged | Above EASL's line for women. Check transferrin saturation. |
| Above 300 to 1,000 | Flagged high | Flagged high | Inflammation, liver disease, alcohol, metabolic syndrome and iron overload all produce values here. Transferrin saturation decides whether iron overload stays on the list. |
| Above 1,000 | Flagged critical | Flagged critical | EASL's line for assessing the liver for scarring in haemochromatosis. Severe inflammation can also push ferritin this high. See a doctor promptly. |
If you skip the sex question, FixFirst uses the women's line (200), the more cautious one. Our ferritin level checker applies the same lines in your browser.
Why ferritin rises, and the clue that separates each cause
| Cause | Transferrin saturation | Other clues on the same report |
|---|---|---|
| Inflammation or infection | Normal or low | CRP or ESR raised, or a recent illness. See CRP blood test. |
| Fatty liver or metabolic syndrome | Normal, unless haemochromatosis is also present | ALT, triglycerides, glucose or HbA1c raised. |
| Alcohol | Can be raised (alcohol-related liver disease lowers transferrin, which lifts the saturation; EASL 2022) | GGT raised; AST higher than ALT. |
| Hereditary haemochromatosis | Above 45% (women) or 50% (men) | Family history; European ancestry; ALT may be raised. |
| Liver or muscle cell damage | Not the deciding test | ALT/AST raised (liver) or CK raised (muscle). Damaged cells release ferritin (EASL 2022). |
| Iron tablets, infusions or transfusions | Can be raised | Check what you take, including multivitamins. |
| Kidney disease or cancer | Varies | eGFR and creatinine; your doctor's assessment (BSH 2018). |
ALT high too?
When ferritin and ALT flag together, the AST to ALT pattern and transferrin saturation narrow four scenarios down to one.
High ferritin and high ALT: why they flag together
What to do about a high ferritin
Four checks, in the order that separates the causes fastest.
1
Repeat ferritin with transferrin saturation
Ask for serum iron and transferrin (or TIBC) with the repeat ferritin so saturation can be calculated. EASL advises a morning sample; fasting does not make it more accurate. If you had an infection, a flare-up or a hard training block in the days before, retest once you are well. UIBC vs TIBC explains the iron-binding numbers.
2
Read it with CRP and your liver enzymes
A raised CRP points to inflammation. Raised ALT or GGT points to the liver. Both are often already on the same report; see liver function tests.
3
Stop iron supplements until the cause is known
That includes multivitamins with iron and iron-fortified protein powders. Vitamin C supplements raise iron absorption, and EASL advises people with haemochromatosis to avoid them too, along with daily red meat and moderate-to-heavy drinking. If your doctor prescribed iron, ask before stopping.
4
If transferrin saturation is high, ask about an HFE gene test
EASL recommends testing for the C282Y variant in people of European origin with the ferritin and saturation pattern above. Treatment is regular blood removal (venesection) under a specialist. EASL states that diet changes do not replace it.
5
If transferrin saturation is normal, treat the cause
Ferritin from fatty liver, alcohol or inflammation falls as that cause improves. EASL finds no conclusive evidence that removing blood helps people whose raised ferritin comes from metabolic syndrome or heavy drinking.
Frequently asked questions
What ferritin level is too high?
FixFirst flags ferritin above 200 ng/mL in women and above 300 ng/mL in men, the lines EASL's 2022 haemochromatosis guideline uses to look for iron overload. Above 1,000 ng/mL it is flagged critical, the level at which EASL advises assessing the liver for scarring. ng/mL and µg/L are the same number.
Does high ferritin mean I have too much iron?
Not on its own. Ferritin also rises with inflammation, liver disease, alcohol, metabolic syndrome, kidney disease and some cancers (BSH 2018; EASL 2022). Transferrin saturation is the test that separates stored iron from those causes.
What is transferrin saturation, and what level matters?
It is the share of your iron-carrying protein loaded with iron, calculated from serum iron and transferrin or TIBC. EASL treats above 45% in women and above 50% in men as raised. With a high ferritin, that is the pattern that calls for an HFE gene test in people of European origin. A normal result points away from haemochromatosis but does not rule it out in everyone.
Can fatty liver or alcohol cause high ferritin?
Yes. EASL lists metabolic syndrome, fatty liver and chronic alcohol excess among the causes of a raised ferritin, and chronic alcohol use raises it by increasing iron absorption and by injuring the liver. Both can also raise ALT, so the two flags often travel together. High ferritin and high ALT covers how to tell the scenarios apart.
Should I stop iron supplements if my ferritin is high?
Yes, until the cause is known, unless your doctor prescribed iron for a reason you have discussed. That includes multivitamins with iron. EASL also advises people with haemochromatosis to avoid supplemental vitamin C, because it raises iron absorption.
Can diet lower high ferritin?
If the cause is haemochromatosis, no. EASL states that dietary changes do not substitute for iron removal by venesection. If the cause is fatty liver, alcohol or inflammation, ferritin falls as that cause improves, so weight loss, less alcohol and treating the inflammation are the levers.
Is a ferritin over 1,000 dangerous?
It needs prompt medical review. EASL notes that below 1,000 ng/mL the risk of severe liver fibrosis is negligible in haemochromatosis, and above it a doctor should assess the liver. Severe inflammation and some rare conditions also produce very high ferritin, so the number alone does not name the cause.
References & Guidelines
Medical disclaimer: FixFirst is an educational tool, not a medical device. A high ferritin needs a doctor to look at the cause. The thresholds here come from EASL 2022 and BSH 2018. Always consult a licensed healthcare provider before stopping or starting iron, or acting on a ferritin result.
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