Growth patterns of breastfed infants and the current status of growth charts for infants.

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Abstract
In summary, numerous studies have indicated that the pattern of growth during infancy is influenced by feeding mode. Compared to formula-fed infants, breastfed infants generally gain less weight, particularly after the first few months of life. This appears to be a normal pattern among healthy, thriving infants. Although true growth faltering can certainly occur among breastfed infants, it is difficult to evaluate using the NCHS growth chart, which is based on a sample of predominantly formula-fed infants. This situation has prompted WHO to begin the process of creating a new growth chart based on breastfed infants.