>>33948999Pica is a cognitive-behavioral phenomenon in humans characterized by the impulse to, and the act of, consuming 'non-food' items. This is typically stuff like sand, gravel, drywall, or clay. Interestingly with clay, that's culturally contextualized - some cultures have clay "food."
Pica is usually observed in people on the more severe end of the autism spectrum, where you find individuals who are catastrophically retarded.
