I get cycle-related cravings. You know how there are all those things that "they" tell you not to eat preceding your period, salt and caffeine chief among them? I nearly always get salty snack food, latte, or dessert cravings.
I woke up the other day and had a random near-craving for corn dogs. I haven't had a corn dog since elementary school. Maybe I was missing nitrites from my diet. (I ignored it, thankfully.)

Funsize, I do something similar with PB--I spread it on apple slices.