Pica occurs when people crave and eat nonfood items. In some cases, this behavior can become harmful. This article describes what pica is, lists some possible causes, and explains how best to treat it.
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Someone in my family eats coal, pencil lead, cement, sand, etc. because of stress or depression. How do I stop her? - Quora
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Someone in my family eats coal, pencil lead, cement, sand, etc. because of stress or depression. How do I stop her? - Quora
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Percentage distribution of different types of pica among urban (filled
Pica: Definition, causes, treatment, and pregnancy