Ferritin isn't the same thing as iron.
What ferritin measures, why it's tested alongside iron, and what can influence your result. Explained in plain English.
Iron is a mineral in your blood. Ferritin is the protein that stores it. A ferritin result gives a picture of your iron stores, not just what is circulating today.
What ferritin is
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Ferritin
- What it measures
- How much iron your body has in storage.
- Why it’s tested
- To look at iron stores alongside other blood health markers.
- What can influence it
- Diet, periods, pregnancy, inflammation and some medicines.
- Included in
- Claryty Complete and Claryty Energy
Why it's tested
Body paragraph.
"If my iron is fine, my ferritin must be too."
They measure different things, so one can sit inside the reference range while the other does not.
| Marker | What it shows | Claryty test |
|---|---|---|
| Ferritin | Iron in storage | Claryty Complete, Claryty Energy |
| Iron | Iron circulating in your blood | Claryty Complete |
| Transferrin | The protein that carries iron | Claryty Complete |
What can influence it
- Bullet point one.
- Bullet point two.
How to test it at home
- Collect your sample. A finger-prick sample, using the kit.
- Post it back. Your sample is analysed by our UK laboratory partner.
- Read your results. Results typically in 1–2 working days after your sample reaches the lab, each explained in plain English.
When to speak to your GP
A result is information, not a diagnosis.
If you have symptoms or concerns, or a marker is above or below the reference range used by the lab, speak to your GP or another appropriate healthcare professional.
Common questions
Question one?
A short, direct answer in two or three sentences.
Question two?
Answer.
Sources
- Source name, page title, link.
See your iron markers, explained.
Ferritin, iron and transferrin are part of Claryty Complete, alongside thyroid, female hormones, cholesterol and more. A finger-prick sample at home.
Claryty provides health testing information and does not replace medical advice, diagnosis or treatment.