PEDIATRICS Vol. 90 No. 3 September 1992, pp. 375-379
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Iron Status in Exclusively Breast-Fed Infants

Elvira B. Calvo MD1, Ana C. Galindo MD2, and Norma B. Aspres MD2

1 From the Centro de Estudios Sobre Nutrición Infantil, Hospital Materno-Infantil "Ramón Sardá," Buenos Aires, Argentina
2 From the Division de Pediatria, Hospital Materno-Infantil "Ramón Sardá," Buenos Aires, Argentina

The aim of this study is to evaluate the iron nutritional status of infants breast-fed exclusively and for a prolonged period in relation to their growth rate and dietary changes. Forty subjects (25 breast-fed; 15 formula-fed) were studied from 0 to 9 months of age. Milk (human or formula) was the only source of food during the first 6 months. From the sixth month onward mothers were instructed to use iron- and ascorbic acid-rich foods to supplement breast-feeding. At the ninth month, prevalence of anemia was 27.8% in the breast-fed group and 7.1% in the formula-fed group. Storage iron was absent in 27.8% of the breast-fed infants vs none of the formula-fed infants. These findings reinforce the recommendation that breast-fed infants be given supplemental iron from the fourth month of life.

Key Words: iron status • breast-feeding • infants

Submitted on November 8, 1991
Accepted on February 18, 1992




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