Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Transferrin Saturation: How Well Does Your Body Transport Iron?
Transferrin saturation measures the percentage of iron-transport protein carrying iron, a critical marker for physical performance. Optimal iron status is essential for oxygen transport to working muscles, endurance capacity, and recovery from training.
What It Measures
This test calculates the percentage of transferrin protein that is carrying iron, derived from serum iron and total iron-binding capacity. It provides a more complete picture of iron status than either measurement alone.
Why It Matters
Transferrin saturation is one of the most informative markers for assessing iron balance. It can help identify iron deficiency before anemia develops and is also valuable for detecting iron overload conditions such as hemochromatosis.
When to Test
Testing may be recommended when iron deficiency or iron overload is suspected, as part of anemia investigation, during monitoring of iron supplementation, or as a screening tool for hereditary hemochromatosis.
Symptoms
Low Levels
High Levels
Recommendations
Male
Low transferrin saturation indicates iron deficiency. Consider iron supplementation.
High transferrin saturation may indicate haemochromatosis. Consider genetic testing.
Female
Low transferrin saturation indicates iron deficiency. Consider iron supplementation.
High transferrin saturation may indicate haemochromatosis. Consider genetic testing.
Lifestyle Tips
For low iron status, include iron-rich foods such as lean red meat, poultry, fish, beans, and dark leafy greens. Vitamin C enhances iron absorption. For high iron status, follow your healthcare provider's guidance regarding dietary modifications and monitoring.