Obviously, all the listed food combinations are odd, but the weirdest pregnancy cravings are the ones that are not actually edible. Many women develop a condition called pica while pregnant. This is when a person craves or compulsively eats non-food items.
The reason that these cravings come to be is typically tied to a lack of specific vitamins and minerals. For instance, like ice, craving chalk might signal that someone has exceptionally low levels of iron or zinc in their system.
The good news is that with a proper diet, prenatal vitamins, and additional supplementation as directed by your doctor, you can see these weird pregnancy craving disappear. And for those who simply enjoy eating their graham crackers topped with a heaping helping of butter during pregnancy, you can also rest assured that most of these longings won't last after your baby arrives!