This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Excessive eating of non-nutritive substances is called- 
Select and explain. 
A. PICA, B. Anorexia nervosa, C. Prune belly disease, D. Dyslexia
A: PICA
Answer: A: PICA 
Explanation: Pica involves repeated or chronic ingestion of non-nutritive substances, which includes plaster, charcoal, clay, woo: ashes, patent & earth, o More common associated with autism :
Family disorganisation
Poor supervision
Psychologic Neglect
Geophagia (eating of the earth) is associated with pregnancy and some culture.