If you have ever craved for 'unusual' non-food items like chalk

Pica is an eating disorder in which a person feels compelled to eat non-nutritive things such as dirt, clay, chalk, charcoal, paint, paper, soap, glass, hair, ice, and so on.

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If you have ever craved for 'unusual' non-food items like chalk, mud, paper, or ice, you must read this

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Craving mud, chalk could be due to iron deficiency; expert says leafy vegetables, meat rich source can reduce risk

Vardaan Medical Center - PICA is a condition in which pregnant women have an urge to eat non-food items like dirt and clay, which could be connected to iron deficiency and lack