Craving ice cubes or ice cream? It could be that the body is low in iron. Doctors call it “pica.” It’s when the body starts craving things that have no nutritional value like ice, clay, soil, or paper. Specifically, chewing ice is associated with iron deficiency anemia.
There are no clear studies that show the reasons, but one study indicates that the alertness in people with an iron deficiency declines when they chew ice. There are other problems associated with pica like those with emotional problems such as stress and obsessive-compulsive disorder.