Pagophagia is considered less serious than pica, but is recognized as "compulsive ice chewing, which can be linked to an iron deficiency," says Dr. Roopali Kulkarni, a doctor of dental medicine ...

Craving ice is, indeed, a symptom of iron deficiency. There's even a term for it: pagophagia. Pagophagia is an intense, persistent craving to chew ice. It's a form of pica, the impulse to eat ...