Total energy expenditure in young children.

Measurement of total energy expenditure (TEE) in young children is now possible without interfering with or influencing lifestyle. Such data allow direct comparison with recommendations for energy requirements which have hitherto been based on measurements of energy intake. Evaluation of the current world data of measured TEE in children aged 1-6 years shows a consistent pattern despite originating from different laboratories. Data from 225 children reveal that energy expenditure is, on average, about 20% below current international recommendations. It is postulated that the reduction is probably due to changes in levels of habitual activity, which may have potentially important effects on health, and which need to be monitored carefully. © 1996 Wiley-Liss, Inc.