This is the 18082nd most frequent Polish word.
żywieniowego
"Żywieniowego" means "nutritional" or "related to nutrition."
Here, 'żywieniowego' is used as an adjective modifying 'sportowca', referring to nutrition-related aspects of an athlete.
Dieta żywieniowego sportowca różni się od standardowej diety.
The diet of a nutritional athlete differs from a standard diet.
In this sentence, 'żywieniowego' serves as an adjective to describe 'eksperta', highlighting the expertise in nutrition.
Plan żywieniowego eksperta uwzględnia wszystkie niezbędne składniki.
The plan of a nutritional expert includes all necessary ingredients.
The use of 'żywieniowego' here is attributive to 'doradztwa', indicating the type of advice, specifically related to nutrition.