The aim of the study was to compare the content of major components, selected elements
and heavy metals in the fillet, spine and bones of a carp (Cyprinus carpio). Moreover, the extent
to which a prepared portion of carp tissue (100 g of fillet and 10 g of carp spine or bones) met
the requirements for analyzed elements in adults (women and men) and children was calculated.
The proximate composition (total protein, total lipid, ash, moisture) and mineral content of the fish
samples were determined. The nutrient composition presented fluctuations among the different
tissues. Moisture was the main constituent in the fillet and in the spine with 77.8% and 56.0%,
respectively, whereas in bones, the main ingredient was ash (36.2%). All carp tissues were good
sources of protein, with 16.5%, 21.0% and 17.0% in spine, bones and fillet, respectively. The most
abundant main elements were the potassium in the fillet (4005 mg kg−1) and calcium in the bones
(116,463 mg kg−1). The most abundant trace elements were iron in fillet and zinc in bones and spine.
Carp meat can be considered a safe foodstuff in terms of concentrations of Hg, Pb and Cd, as the
levels of these contaminants were less than FAO and European Commission maximum guidelines.