My mother used to chew ice years ago. One day she was taking my younger brother in for a check up and the doctor noticed her chewing the ice. He asked her if she did it all the time and she said yes. He scheduled her for some tests and found out that it was a hormone imballance. When the imballance was cured she had no more desire for the ice.

I started chewwing ice when I fell pregnant with my daughter - chewed day & night for the next 6 years it turned out that it was due to low iron!! Oddly it stopped when I had my son!!