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Los suplementos de zinc en los bebés amamantados
P A Walravens1, A Chakar, R Mokni
1Unité 1, INSERM, Paris, France.
Lancet (London, England)
|September 19, 1992
Resumen
La suplementación con zinc mejoró significativamente el crecimiento lineal y el aumento de peso en los bebés amamantados que experimentan vacilaciones en el crecimiento. Esto sugiere que la ingesta inadecuada de zinc contribuye a problemas de crecimiento en algunos bebés amamantados.
Área de la Ciencia:
- La pediatría es la medicina de los niños.
- Ciencias de la Nutrición Ciencias de la Nutrición
- Crecimiento y desarrollo humano.
Sus antecedentes:
- El vacilante crecimiento es común en los bebés amamantados en todo el mundo.
- El papel de la deficiencia nutricional de zinc en este fenómeno requiere una mayor investigación.
Objetivo del estudio:
- Para determinar si la suplementación de zinc puede mejorar los parámetros de crecimiento en los bebés amamantados con crecimiento vacilante.
- Para evaluar el impacto de la deficiencia de zinc en la velocidad de crecimiento infantil.
Principales métodos:
- Un ensayo aleatorizado, controlado con placebo, en el que participaron 57 bebés lactantes de 4 a 9 meses de edad.
- Los bebés recibieron 5 mg de zinc al día o un placebo durante 3 meses.
- Los parámetros de crecimiento (longitud, peso, puntuaciones Z) se midieron antes y después de la suplementación.
Principales resultados:
- La suplementación con zinc condujo a un aumento significativo en las puntuaciones Z de longitud por edad en comparación con el placebo (+0,21 vs -0,13, p=0,029).
- Se observó un mayor crecimiento lineal en los niños que recibieron zinc (6,0 cm frente a 4,6 cm, p=0,02).
- El aumento de peso fue significativamente mayor en el grupo de zinc (1,64 kg frente a 1,28 kg, p=0,047).
Conclusiones:
- La suplementación de zinc puede mejorar efectivamente el crecimiento lineal y el aumento de peso en los bebés amamantados con crecimiento vacilante.
- La ingesta inadecuada de zinc puede contribuir a la disminución de la velocidad de crecimiento en los bebés amamantados durante más de 4 meses.
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