So, how is the plural used? If I have five oranges, do I have vyakula? Would I, if I had some oranges, some rice, and some sausages? I think in English I would only use the plural, if I were talking about cuisines, such as the foods of the various peoples of Asia, or some such.
OK, so essentially you would use the plural for different kinds of food, right? In my first example above, if I just had 5 oranges (but did not want to specify what kind of food it was) I might call it chakula, but if I had a bag of oranges, mangoes, and onions, I might want to call it vyakula?