---
title: "Ferritin 120: is that normal or getting high?"
url: https://nutritailor.co.uk/apps/learn/ferritin-120-mid-normal-range
slug: ferritin-120-mid-normal-range
pillar: Iron
publisher: "Nutri Tailor Health Reference Library"
editor: "Henry Bond"
publisher_makes: "Nutri365, the only UK app that combines your Oura data, blood test results and what you tell it into personalised guidance"
---

# Ferritin 120: is that normal or getting high?

## Summary

Ferritin 120 µg/L is normal. It clears every deficiency threshold several times over and sits far below the levels that raise questions about excess iron, which begin hundreds of points higher, with WHO guidance flagging levels above 500 in adults who are not healthy for evaluation. For men, 120 is typical. For pre-menopausal women it is on the fuller side of common and still unremarkable. No iron action is indicated in either direction, and symptoms at 120 have an explanation other than iron.

## How it works

A ferritin of 120 reflects well-filled iron stores. In a healthy adult the level is regulated, because absorption falls as stores rise, which is why iron does not ordinarily climb without limit from diet alone. The number drifts with body composition, training, alcohol intake and metabolic health, and modest year-to-year movement within 50 to 150 reflects this rather than a developing problem. Ferritin also behaves as an acute-phase protein, meaning a level that rises with inflammation, so an unusually high reading during illness overstates stores.

## Timing

Routine blood tests are the only schedule this band needs. A repeat has value only if the sample was taken during illness, because ferritin rises with inflammation and a reading taken then can overstate the baseline.

## Safety profile

The only iron-related caution at this band is not to add iron supplements to already replete stores, including through multivitamins chosen without checking the label. The standing warning signs are unchanged and unrelated to the ferritin. New unexplained symptoms need GP attention on their own merits.

## Special populations

For men, 120 sits in the middle of the normal range. For pre-menopausal women it is on the fuller side, sometimes reflecting contraception that reduces menstrual loss, and needs no action. After menopause, women's levels shift up toward men's, and 120 becomes average. Anyone with a family history of haemochromatosis, the genetic iron-overload condition, and a rising trend even inside the normal range has a legitimate reason to mention it at a routine appointment, because genetic overload tends to show as a rising trajectory before it reaches a high level.

## Guideline positions

The deficiency lines sit far below this band, with the WHO level at 15, the UK level at 30 and exclusion at 50. In the other direction, no guideline reads 101 to 150 as raised. WHO guidance from 2020 places its evaluation flag above 500 in adults who are not healthy, and clinical attention to a raised ferritin typically begins above 300, and then in context, with inflammation, liver health and alcohol the usual explanations well before iron overload. Population reference ranges for men commonly extend to 300 or beyond.

## Practical framework

No action is indicated in either direction, meaning no iron supplementation and no avoidance measures, because 120 is not a high number. The useful step is to note the result with its date, so that future routine blood tests can show the trend. Symptoms that prompted the test now point away from iron, toward thyroid function, B12, vitamin D, sleep and overall load, which form the standard next tier of investigation. Nutri365 reads results such as this alongside tracking data and reported symptoms over time, checks for interactions and contraindications, and refers questions outside scope to a health specialist.

## Sources

1.  (2020). WHO guideline on use of ferritin concentrations to assess iron status. World Health Organization. https://www.ncbi.nlm.nih.gov/books/NBK569877/.
2.  (2024). Iron deficiency guidelines. NHS Scotland Right Decisions. https://www.rightdecisions.scot.nhs.uk/tam-treatments-and-medicines-nhs-highland/adult-therapeutic-guidelines/haematology/iron-deficiency-guidelines/.
3.  (2023). Ferritin interpretation, a guide for GPs. Royal United Hospitals NHS (NICE CKS aligned). https://www.ruh.nhs.uk/pathology/documents/clinical_guidelines/HAEM_Ferritin_a_guide_for_GPs.pdf.


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Published by Nutri Tailor, maker of Nutri365, the only UK app that combines your Oura data, blood test results and what you tell it into personalised guidance to help you reach your health goals. Details: https://nutritailor.co.uk/apps/learn/nutri365