Add another divine smite in the form of inflicting some duration of temporary intrinsic hunger. It’s a nice counterpart to your god filling your stomach when you pray (which is inaccessible if you get smited with hunger, since the god has to be angry).

This may be tricky to balance because either it happens early in the game and there is not sufficient food, making this a death sentence; or later in the game and there is so much food that this is a minor annoyance.