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Energy and fat intake in obese and lean children at varying risk of obesity

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

McGloin, AF, Livingstone, Barbara, Greene, LC, Webb, SE, Gibson, JMA, Jebb, SA, Cole, TJ, Coward, WA, Wright, A and Prentice, AM (2002) Energy and fat intake in obese and lean children at varying risk of obesity. INTERNATIONAL JOURNAL OF OBESITY, 26 (2). pp. 200-207. [Journal article]

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Abstract

OBJECTIVE: This study compared lean children at high risk (HR) and low risk (LR) of obesity and obese children (OB) to assess the relationship between their energy (EI) and fat intake and adiposity. DESIGN: Cross-sectional study of energy and fat intake in children, using 7-day weighed intakes validated by doubly labelled water (DLW) energy expenditure. SUBJECTS: A total of 114 pre-pubertal children, 50 HR (mean +/- s.d., 6.7 +/- 0.6 y, 25.7 +/- 4.8 kg, 21.3 +/- 6.6% body fat), 50 LR (mean s.d., 6.6 +/- 0.8 y, 23.6 +/- 3.7 kg, 18.9 +/- 5.7% body fat) and 14 OB (mean +/- s.d., 6.8 +/- 1.0 y, 37.7 +/- 5.3 kg, 34.8 +/- 5.6% body fat). MEASUREMENTS: Body fatness was measured using deuterium dilution, total energy expenditure (TEE) by DLW and dietary intake using 7-day weighed records. RESULTS: EI was 98% of TEE in LR children, 95% in HR children and 86% in OB children. Although El was similar in each group (LR, 7.03 +/- 1.26 MJ/day; HR, 7.30 +/- 1.46 MJ/day; OB, 7.55 +/- 1.67 MJ/day), obese children consumed more fat in absolute (g) and relative (percentage energy) terms than LR children (LR, 68 +/- 13 g, 36.4 +/- 4.2%; OB, 80 +/- 25 g, 39.5 +/- 4.6%; P < 0.05). There was a significant linear trend towards increasing fat intake (percentage energy) with increasing risk of obesity (P < 0.05). While HR children were heavier and fatter than LR children (P < 0.05), their El and fat intake were not significantly greater (HR, 73 +/- 17 g, 37.3 +/- 4.4%). Dietary fat intake (percentage energy) was weakly but significantly related to body fatness (r(2) = 0.05, P = 0.02) by step-wise regression. Since energy from fat was the only macronutrient that was a significant predictor of body fatness, results were therefore analysed using quartiles of fat intake (percentage energy) as cut-offs. When grouped in this way children with the lowest intakes were leaner than those with the highest intakes (19.5 +/- 7.5 vs 24.9 +/- 9.4% body fatness; P < 0.05). There was a significant trend for increasing fatness as fat intake increased (P < 0.05). CONCLUSION: Fat intake is related to body fatness in childhood.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
ID Code:4239
Deposited By:Dr Tracy McCaffrey
Deposited On:13 Jan 2010 15:14
Last Modified:01 Nov 2011 11:13

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