Medically reviewed by Steffini Stalos, DO Ferritin is a protein that stores iron for your body. Iron is a mineral needed to make hemoglobin—a protein in red blood cells that carries oxygen-rich ...

Increasing the cutoff value for ferritin levels may substantially increase the number of individuals diagnosed with iron ...

Ferritin levels are measured in nanograms per milliliter (ng/mL) of blood. Normal ranges generally fall between 15-150 ng/mL for females and 15-200 ng/mL for males.