1) Eating behavior of human 
Pagophagia is a form of the disorder pica involving the compulsive consumption of ice or iced drinks. It has been associated with iron deficiency anemia, and shown to respond to iron supplementation, leading some investigators to postulate that some forms of pica may be the result of nutritional deficiency. Chewing ice may lessen pain in glossitis...
eating trays of ice to help offset iron deficiency
Compulsive and repeated ingestion of ice; sometimes associated with iron deficiency anaemia. ... Origin: G. Pagos, frost, + phago, to eat ... (05 Mar 2000) ... 
(pa″go-fa´je-ә) the habit of eating large amounts of ice, a form of pica sometimes linked to iron deficiency.
Type: Term Pronunciation: pā′gō-fā′jē-ă Definitions: 1. Compulsive and repeated ingestion of ice; sometimes associated with iron-deficiency anemia.
pagophagia, pagophagous, pagophagy The ingestion of extraordinary quantities of ice [frost], often related to a lack of iron in the blood.pagophagia 1. A form of pica characterized by the deliberate eating of large quantities of ice. The condition may be associated with iron-deficiency anemia. 2. A compulsive eating of ice. 3. A folk remedy suggesting the eating of a bowl of ice each day to offset iron deficiency.