This is the 10085th most frequent Polish word.
białek
The Polish word "białek" is a genitive plural form of "białko," which means "protein" in English.
In this sentence, 'białka' refers to egg whites, indicating the part of the egg that is separate from the yolk.
Kiedy przygotowuję omlet, najpierw oddzielam białka od żółtek.
When preparing an omelet, I first separate the whites from the yolks.
Here, 'białek' refers to proteins in the blood, discussing their health-related concentration level.
Badanie wykazało, że poziom białek we krwi jest optymalny.
The examination showed that the protein levels in the blood are optimal.
In this example, 'białek' is used to denote proteins being studied by researchers in a scientific context.