Pagophagia involves eating

Pica is defined as persistent eating of nonnutritive substances.It is identified only when medical problems such as intestinal obstruation, intestinal infections or poisoning arises (lead). among adults, ceain foods of pica, including geophagia (clay) and amylophagia (starch), have been repoed in pregnant women. Ref: Synopsis of Psychiatry, 11e, pg 1206