Iron and blood status
What is Transferrin saturation?
how loaded your iron carriers are
- Unit
- %
- Sample
- Serum
- Fasting
- No fasting needed
- Turnaround
- 2 days
Transferrin saturation shows the percentage of transferrin that is carrying iron. It drops early in iron deficiency and rises early in iron overload.
The value is calculated from serum iron and TIBC. It is a sensitive early marker of iron status and is also used to screen for haemochromatosis.
What does low Transferrin saturation mean?
Low transferrin saturation points to iron deficiency.
What does high Transferrin saturation mean?
High transferrin saturation, especially above 45 percent, raises suspicion of haemochromatosis.
Panels that measure Transferrin saturation
- Iron Test Base
- Performance Test Base
- Performance Test Plus
- Health Check Plus
- Iron Test Complete
- Performance Test Complete
- Health Check Complete
- Health Check Man
- Health Check Kvinna
Reading
More markers in the same area
Launching in Stockholm in 2026.
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This is general information about the marker, not an assessment of your values and not medical advice. Last updated: August 2026.