It's the End of the World As We Know It.

The food item I would grab knowing it might be the only thing I'll eat in awhile would be the biggest bag of carrots, only because they keep me full and are good for you and they will probably last awhile. I'll wait as long as I can to eat them or until all of my food is gone and when I do get to eat them, I hopefully don't scarf them done, but take time to enjoy them and it will stink knowing that might be the only thing I'll ever get to eat.