We have seen kids chewing on things like ice, dirt, chalk and so on. We naturally assume that it ceases during childhood– well, a little over one percent of adults indulge in this habit too.

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 ...