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Public Health Nutr. 2005 Oct;8(7A):953-67.

Energy requirements of infants.

Author information

1
USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030, USA. nbutte@bcm.tmc.edu

Abstract

OBJECTIVE:

To estimate the energy requirements of infants from total energy expenditure and energy deposition during growth.

DESIGN:

Energy requirements during infancy were estimated from total energy expenditure measured by the doubly labelled water method and energy deposition based on measured protein and fat gains.

SETTING:

Database on the total energy expenditure and energy deposition of infants was compiled from available studies conducted in China, Chile, Gambia, Mexico, The Netherlands, UK, and USA.

SUBJECTS:

Healthy, term infants.

RESULTS:

Total energy requirements (kJ day(-1)) increased with age and were higher in boys than girls due to differences in weight. Energy requirements decreased from 473 kJ kg(-1) per day for boys and 447 kJ kg(-1) per day for girls at 1 month of age to 337 kJ kg(-1) per day for boys and 341 kJ kg(-1) per day for girls at 6 months of age, and thereafter tended to plateau. Energy deposition as a percentage of total energy requirements decreased from 40% at 1 month to 3% at 12 months of age. These estimates are 10-32% lower than the 1985 FAO/WHO/UNU recommendations which were based on observed energy intakes of infants.

CONCLUSIONS:

Recommendations for the energy intake of infants should be revised based on new estimates of total energy expenditure and energy deposition.

PMID:
16277814
DOI:
10.1079/phn2005790
[Indexed for MEDLINE]

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