Abstract

SANTOS, Jacqueline Siqueira et al. Nutrient intake of breastfed infants with phenylketonuria. Rev. Nutr. [online]. 2011, vol.24, n.6, pp. 863-872. ISSN 1415-5273.  http://dx.doi.org/10.1590/S1415-52732011000600007.

OBJECTIVE: This study aimed to assess energy, phenylalanine, tyrosine and protein intakes of breastfed infants with phenylketonuria (breastfed group). METHODS: A retrospective/prospective cohort study was used to compare a group of 39 breastfed infants aged 6 months or less (breastfed group) with a control group being fed a special low-phenylalanine formula. The groups were paired by gender and breastfeeding duration. A total of 719 dietary recalls of the breastfed group and 628 of the control group was reviewed. Anthropometric assessment was done at baseline and end of study. Nutrient intakes were calculated by the software Minitab and LogXact 4.0 and anthropometric assessment was done by the software Epi Info 6.0. RESULTS: The breastfed group presented adequate intake of phenylalanine and tyrosine and more adequate protein and energy intakes than the other group. Most infants, regardless of group, presented z-scores within the normal range (Z ³-2), with good progression of the studied indicators (weight-for-age, height-for-age, weight-for-height and head circumference). CONCLUSION: Breastfeeding of infants with phenylketonuria provided adequate energy, phenylalanine, tyrosine and protein intakes. The likelihood of a child in the breastfeed group to present adequate energy intake was 10.64 times higher than that of a child in the control group. In relation to protein intake, the chance was 5.34 times higher. Both groups presented similar growth.

Keywords : Breast feeding; Phenylketonurias; Risk groups nutrition; Infant nutrition.