Answers are grounded in this paper and cite their sources.
In two cases of children with pica referred to a child psychiatrist, both were found to have undiagnosed iron-deficiency anaemia. Treatment with iron supplements and dietary advice led to decrease or cessation of pica.
No takes yet. Share an insight, caveat, or question.
ARBITER et al. (1991) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: