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Vol. 16 - Num. 62

Childhood and Adolescence PrevInfad/PAPPS Group

Iodine supplementation in pregnancy and lactation

Carmen Rosa Pallás Alonsoa, Julia Colomer Revueltab, Olga Cortés Ricoc, M.ª Jesús Esparza Olcinad, José Galbe Sánchez-Venturae, Jaime García Aguadof, Ana Martínez Rubiog, José María Mengual Gilh, Manuel Merino Moínai, Francisco Javier Sánchez Ruiz-Cabelloj, Javier Soriano Faurak

aServicio de Neonatología. Hospital Universitario 12 de Octubre. Madrid. España.
bDepartamento de Pediatría, Obstetricia y Ginecología. Unidad de Pediatría. Universidad de Valencia. Valencia. España.
cPediatra. CS Canillejas. Madrid. España.
dPediatra. CS Barcelona. Móstoles. Madrid. España.
ePediatra. CS Torrero La Paz. Zaragoza. España.
fPediatra. CS Villablanca. Madrid. España.
gPediatra. CS de Camas. Sevilla. España.
hPediatra. CS Delicias Sur. Zaragoza. España (coordinador).
iPediatra. CS El Greco. Getafe. Madrid. España.
jPediatra. CS Zaidín Sur. Granada. España.
kPediatra. CS Fuensanta. Valencia. España.

Correspondence: CR Pallás. E-mail:

Reference of this article: Pallás Alonso CR, Colomer Revuelta J, Cortés Rico O, Esparza Olcina MJ, Galbe Sánchez-Ventura J, García Aguado J, et al. Iodine supplementation in pregnancy and lactation. Rev Pediatr Aten Primaria. 2014;16:147-53.

Published in Internet: 30-06-2014


The benefits of Iodine supplementation in Iodine-deficient areas are well established. The World Health Organization included Spain among the countries with an adequate Iodine intake in 2004 and some recent research papers confirm that Iodine intake is adequate in the Spanish population.

Nevertheless, Spanish health professionals have been faced with contradictory recommendations, producing confusion and uncertainty in clinical practice referring to Iodine supplementation in pregnancy and breastfeeding mothers. Clinicians and researchers are concerned that mild or moderate Iodine deficiency could be related to underdevelopment in children, but routine Iodine supplementation in pregnancy is not risk free.

The working group PrevInfad (Prevention in Childhood and Adolescence) considers that being a preventive intervention that applies to the total healthy population, the precaution principle must be prioritized, and that there is no evidence on the balance risk-benefit in the pharmacological Iodine supplementation during pregnancy and breastfeeding. For these reasons they suggest not making this intervention.


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