Transferrin Saturation
Formula
(Iron / TIBC) × 100What It Reveals
Iron transport capacity and iron status.
Interpretation Ranges
Optimal
20–45%
Adequate iron transport
Borderline
15–20%
Possible iron deficiency
High Risk
< 15% or > 50%
Iron deficiency or iron overload (hemochromatosis)
Clinical Significance
Transferrin saturation is critical for diagnosing both iron deficiency and iron overload. Values above 45% warrant screening for hereditary hemochromatosis.
What To Do
Low: increase iron-rich foods + vitamin C. High: check HFE gene. Avoid iron supplements without confirmed deficiency.
Component Biomarkers
GATOR Calculates This Automatically
Upload your lab results and GATOR calculates Transferrin Saturation along with 16 other clinical ratios — tracked over time with AI-powered insights.
Source: WHO Iron Assessment Guidelines
This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider for interpretation of your results.