What Deficiency Causes Sand Cravings? A Guide to Pica and Geophagia
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4 min read
The compulsive eating of non-food items, known as pica, is observed in up to 30% of young children. Often, the specific craving for sand or dirt, a form of pica known as geophagia, is associated with a mineral deficiency, most commonly iron or zinc. This behavior is the body's unusual and misguided attempt to seek nutrients it lacks, though ingesting sand is ineffective and can be dangerous.