I ate ice for over ten years, always suffered from anaemia, I took iron but it didn't really help.
I was always feeling tired, aching joints, headaches and various other symptoms.
When browsing the net one day I found the symptoms of coeliac disease, I matched almost perfectly.
I got in touch with my doctor, had the various tests and was diagnosed. The point of this post is, I had to start following a gluten free diet and within a few days my craving for ice just disappeared.It's been nearly a year now and I never eat ice anymore.