Have you ever been hungry?
Not "hungry" as in "Oh, I just had a three-course lunch and I'm already hungry again!"
I mean, hungry as in you haven't had anything at all to eat in days. Or your mom's not home because she works two jobs and the only thing in your cabinets is a box of cake mix, so you eat that. Or you want to feed your children but it's the end of the month and you have no money to buy even a jar of peanut butter.