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- Title
Energy requirements of infants.
- Authors
Butte NF; Butte, Nancy F
- Abstract
<bold>Objective: </bold>To estimate the energy requirements of infants from total energy expenditure and energy deposition during growth.<bold>Design: </bold>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.<bold>Setting: </bold>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.<bold>Subjects: </bold>Healthy, term infants.<bold>Results: </bold>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.<bold>Conclusions: </bold>Recommendations for the energy intake of infants should be revised based on new estimates of total energy expenditure and energy deposition.
- Publication
Public Health Nutrition, 2005, Vol 8, Issue 7a, p953
- ISSN
1368-9800
- Publication type
journal article
- DOI
10.1079/phn2005790