The TIBC (Total iron binding capacity) lab test reveals whether a protein called transferrin, produced by the liver,  has the ability to carry iron in the blood.  This test is usually done to determine anemia, or low body iron.

In the absence of chronic disease, when blood levels of iron are low, TIBC will be high.

In the presence of chronic inflammation (whether you are aware of it or not), or liver issues, or low protein consumption, the TIBC can fall low. The latter will mean you can’t dose with high amounts of iron.

To see what patients have learned about interpreting lab tests, go here.

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