"The food is for the judges."
Translation:Het eten is voor de rechters.
There are actually several terms that refer to food:
het eten - the dominant word for food
het voedsel - a bit less colloquial and a bit more formal than het eten
de kost - not very common
de spijs - usually found in compound words where it does not translate to 'food' (e.g. de spijskaart (menu)). There are some other uses for it. Spijzen (foods) is very high style.
het voer/voeder - rather archaic; primarily used when concerning animals (e.g. honde(n)voer (dog food)).