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Fish and Heavy Metals - Is It Worth Eating, and If So, Which Types?
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Fish and Heavy Metals - Is It Worth Eating, and If So, Which Types?

Max Müller
Max Müller
Max Müller Author
2026-03-25 Date
10 min. read article.read_time
10 Chapters
Fish, celebrated for their high nutritional value, can pose a threat to health due to the presence of heavy metals such as lead, cadmium, and mercury. These metals accumulate in the bodies of fish as a result of environmental pollution. Is it worth eating fish at all, and if so, which species are the least harmful?

Ryby – wartości odżywcze

Ryby są źródłem łatwostrawnego i pełnowartościowego białka. Stanowią także bogate i jedyne źródło niezbędnych nienasyconych kwasów tłuszczowych z rodziny omega-3 – kwasów dokozaheksaenowego (DHA) i eikozapentaenowego (EPA). Kwasy omega-3 są niezbędne w diecie człowieka, ponieważ: – biorą udział w procesie prawidłowego widzenia; – warunkują właściwe funkcjonowanie układu nerwowego; – działają przeciwzapalnie; – przyczyniają się do obniżenia stężenia trójglicerydów i wzrostu ilości lipoprotein HDL (tzw. Dobrego cholesterolu); – poprawiają pamięć i zdolności poznawcze; – działają profilaktycznie wobec choroby Alzheimera, depresji i demencji; – wykazują działanie przeciwnowotworowe, szczególnie w kontekście nowotworów przewodu pokarmowego, piersi, jajnika, śluzówki macicy oraz prostaty (M. Jarosz i wsp. 2020). Ryby zawierają także sporo witamin, w tym witaminy rozpuszczalne w tłuszczach (A, D) oraz witaminy z grupy B. Dodatkowo ryby morskie dostarczają odpowiednich ilości jodu i selenu (O. Januszko i J. Kałuża 2019).

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