I am curious about people with pica. what causes that?

It does seem odd: Pica is more common in children but can also occur as an adult. Pica means eating non- food items. We have all heard of the dangers of lead poisoning from brain damage after a child eats paint chips which contain lead. But kids may become fixated on certain things and eat it, like the paste in grade school, although i thought all tried that. Many kids who engage in pica have a developmental d/o.

Pica: Some causes are ; mineral deficiencies such as iron, obsessive compulsive disorder, schizophrenia, cultural such as ingestion of kaolin (white dirt) by african american women in georgia & africa.