What is ferritin relationship with iron?

Ferritin is a protein that stores iron in the body and releases it in a controlled manner, thus playing a crucial role in iron homeostasis. It binds to iron ions, allowing for safe storage and preventing toxicity associated with free iron. The level of ferritin in the blood is often used as an indicator of the body's iron stores; low ferritin levels typically suggest iron deficiency, while high levels may indicate excess iron or inflammation.