Iron is present in the human body only in bound form, soluble and non-toxic. Free iron is dangerous for the human body because it is immediately oxidized into harmful substances that are difficult to dissolve in the body.
Iron is needed:
hematopoiesis, where it is used to synthesize haemo- and myoglobin. Iron plays a key role in the uptake and transport of vital oxygen in hemoglobin, i. it is involved in delivering oxygen from the lungs to the tissues,
in the composition of biomolecules involved in the production of ATP (adenosine triphosphate, which is an operative energy carrier in cells) and helps to neutralize foreign compounds that have entered the body, thereby increasing resistance to stress and disease,
to reduce fatigue and ensure normal skin color.
Iron is found in food of both animal and plant origin. In food of animal origin, e.g. 15% to 35% of the iron in the meat is absorbed by the body and in food of