Iron

What role does it play in the organism?
Iron is a vital trace element. As the constituent of haemoglobin, it ensures oxygen transport in the blood. As a cofactor of an enzyme called catalase, it participates in the protection from so-called free radicals harmful to the organism. (Free radicals are high-energy molecules produced in biochemical reactions normally anyway. Yet, if the regulation is damaged, or too many free radicals are produced for some other reason, they can attack other molecules, and thus can cause functional disturbances via the damage to biological structures (like cell membranes) or diseases). In addition, it plays an important role in cell growth, regeneration and the functioning of the defence system.

What foodstuffs contain it?
Good dietary iron sources are liver, meat and eggs. Only an insignificant quantity of iron in vegetables absorbs.

Who are exposed to iron deficiency and what does this deficiency state cause?
Iron deficiency arises mainly as a result of inadequate dietary habits. According to Hungarian data, the iron intake does not reach requirements and it is to be reckoned with mainly among women. It leads to anaemia, fatigability, reduced resistance and an increased risk of infection.

What is the recommended intake for iron?
The daily requirement is 6-12 mg for children depending on age and 14 mg for adults.

What are the health risks of excessive iron intake?
Excess iron intake may cause constipation, diarrhoea and chronic iron accumulation.