Function of Iron in the Body

Iron is a mineral that the body needs for growth and development. It is widely known to be required in the production of haemoglobin, however there are other functions of iron as well.

Iron is found in muscle cells called myoglobin. Myoglobin also contains a haem group, which allows it to bind reversibly to oxygen. Myoglobin is responsible for accepting, storing, transporting and releasing oxygen.

Iron can also be stored as ferritin and can be found in cells and circulating the blood.

Ferritin level blood tests are often used to diagnose certain diseases. Low levels of ferritin can be a sign of iron deficiency or anaemia, whereas high levels of ferritin may be an indication of leukemia or type 2 diabetes.

Iron is important for our health and is often replenished through consumption of red meat and beans. However, when iron stores are exhausted, the patient will suffer from a condition known as iron depletion. Further decreases may be diagnosed as iron-deficient erythropoiesis or iron deficiency anaemia.

Sources:

https://www.ucsfhealth.org/education/hemoglobin-and-functions-of-iron

https://www.britannica.com/science/myoglobin

https://www.healthline.com/health/ferritin

https://www.mayoclinic.org/diseases-conditions/iron-deficiency-anemia/symptoms-causes/syc-20355034

https://www.verywellhealth.com/iron-supplements-benefits-4178814

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