Energy requirements of infants

Public Health Nutrition

Nancy F Butte¹ 

关键词: Metabolizable energy;    Basal metabolism;    Physical activity;    Total energy expenditure;    Energy cost;    Infants;    Growth;    Energy deposition;   

DOI  :  10.1079/PHN2005790

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

ObjectiveTo estimate the energy requirements of infants from total energy expenditure and energy deposition during growth.DesignEnergy 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.SettingDatabase on the total energy expenditure and energy deposition of infants was compiled from available studies conducted in China, Chile, Gambia, Mexico, Netherlands, UK, and USA.SubjectsHealthy, term infants.ResultsTotal 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.ConclusionsRecommendations for the energy intake of infants should be revised based on new estimates of total energy expenditure and energy deposition.

【 授权许可】

Unknown