What is the primary function of hepcidin in iron metabolism within the context of blood components?

A To increase iron absorption from the gut
B To decrease iron release from macrophages
C To regulate iron recycling by macrophages ✓
D To inhibit erythropoiesis

Explanation

Hepcidin plays a crucial role in regulating iron metabolism by controlling the amount of iron available for erythropoiesis and other physiological processes, primarily through its effects on macrophage iron release.

Source

Medical Biochemistry texts
Hematology Hematology: Blood Components Hematology: Blood Components Medium MEDICAL Confidence: high