Who is the god of food in greek or Italian mythology?

Ok first of all there was never a greek god of food. I guess you can consider Dionysus the god of feasts but he's not the god of food. And second of all where did you get the idea there was Italian mythology! They belivied in the roman mythology because back then rome was Italy and Italy was rome

You won't find a god of food amongst the "main" olympian gods that we're generally familiar with, like Zeus and Aphrodite, but A LOT of minor deities were worshiped in Rome. Fornax was the goddess of bread and baking, for instance. Pomona was the goddess of Fruit. Both of them are pretty obscure though. But they're close enough for what you're looking for, I guess.