What is iron and why do we need it?

Iron is an essential mineral for the human body. It is needed to produce haemoglobin, a protein in red blood cells that carries oxygen from the lungs throughout the body. Without iron, the body cannot produce enough healthy red blood cells. Iron also helps the immune system function properly and is important for growth and development in infants and children. A lack of iron can lead to iron-deficiency anaemia, a condition in which the body does not have enough red blood cells to deliver oxygen to the body’s tissues.