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Associations between the portion sizes of food groups consumed and measures of adiposity in the British National Diet and Nutrition Survey

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

Kelly, Mary, Rennie, Kirsten L., Wallace, JMW, Robson, Paula J., WELCH, RW, Hannon-Fletcher, Mary P.A and Livingstone, M.B.E. (2009) Associations between the portion sizes of food groups consumed and measures of adiposity in the British National Diet and Nutrition Survey. BRITISH JOURNAL OF NUTRITION, 101 (9). pp. 1413-1420. [Journal article]

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DOI: 10.1017/S0007114508060777

Abstract

The objective of the present study was to examine the associations between the portion sizes of food groups consumed with measures of adiposity using data from the National Diet and Nutrition Survey of British adults. Seven-day weighed dietary records, physical activity diaries and anthropometric measurements were used. Foods eaten were assigned to thirty different food groups and analyses were undertaken separately for men and women. The median daily portion size of each food group consumed was calculated. The potential misreporting of dietary energy intake (EI) was identified using the following equation: EI - estimated energy requirements x 100 = percentage of under-reporting (UR) of energy needs. Multinomial logistic regression (adjusted for age, social class, physical activity level and UR) was used to determine the portion sizes of food groups most strongly associated with obesity status. Few positive associations between the portion sizes of food groups consumed and obesity status were found. However, UR was prevalent, with a median UR of predicted energy needs of 34 and 33% in men and women, respectively. After the adjustment was made for UR, more associations between the food groups and obesity status became apparent in both sexes. The present study suggests that the true effect of increased portion size of foods on obesity status may be masked by high levels of UR. Alternatively, these data may indicate that an increased risk of obesity is not associated with specific foods/food groups but rather with an overall increase in the range of foods and food groups being consumed.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Faculty of Life and Health Sciences > School of Health Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Institute of Nursing and Health Research
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
ID Code:11297
Deposited By:Professor Rob Welch
Deposited On:05 Feb 2010 09:31
Last Modified:12 Dec 2012 10:44

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