Before the days of "junk food" women usually craved the food or thing that had a substance their body needed. (It wasn't unusual for women in some areas to eat dirt because of the iron or the chalk/calcium) Today there is some ligitamacy to our cravings, but you have to be careful. Your body does not crave ice cream and oreos for every meal. Your head might, but not your body. It's a fine line between what the body needs and what the head wants!