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Pica: are you hungry for the facts?
D G Federman1, R S Kirsner, G S Federman
1Yale University School of Medicine, West Haven, USA.
Connecticut Medicine
|April 1, 1997
Summary
Pica, the compulsive eating of nonfood items, is often linked to deficiencies like iron deficiency. Treatment for the underlying cause, such as iron therapy, can resolve pica and prevent serious health issues.
Area of Science:
- Nutritional Science
- Developmental Psychology
- Public Health
Background:
- Pica is defined as the persistent ingestion of nonnutritive substances or specific food items.
- Associated conditions include iron deficiency, zinc deficiency, developmental delay, and geophagia.
- The exact causes of pica remain poorly understood, with multiple theories proposed.
Observation:
- Pica is frequently observed in individuals with iron deficiency anemia.
- Nutritional, physiological, psychosocial, and cultural factors are theorized to contribute to pica.
- Pica can manifest across various age groups and developmental stages.
Findings:
- Pica secondary to iron deficiency often resolves with appropriate iron supplementation.
- Complications can range from gastrointestinal issues and poisoning (lead, mercury) to metabolic disturbances (hypokalemia, hyperkalemia) and dental damage.
- Pica is considered an underdiagnosed condition with potentially severe health consequences.
Implications:
- Early diagnosis and management of pica are crucial to prevent complications.
- Addressing underlying nutritional deficiencies, particularly iron deficiency, is key in treating pica.
- Further research into the multifactorial etiology of pica is warranted for effective prevention and treatment strategies.