Iron is a key component of haemoglobin, the protein that carries oxygen in your red blood cells. A shortage of iron in your diet could lead to iron deficiency anaemia. Woman between the ages of 18 and 50 have a higher requirement for iron than men.
Good sources or iron are liver, red meat, beans, chickpeas and nuts, though supplements are available if necessary. Vitamin C can aid the absorption of non-haem sources of iron.