A study of the hemoglobin levels in breast-fed infants in one village of Okinawa prefecture.

We investigated the prevalence of anemia and the hemoglobin levels in breast-fed infants. Three hundred and fifty-six healthy children with different feeding methods were studied longitudinally. The results showed that the prevalence of anemia was higher and the hemoglobin levels were lower in breast-fed infants compared with those in partially breast-fed or formula-fed infants at late infancy.