Secular trends in reported portion size of food and beverages consumed by Irish adults

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O'Brien, Sinead A.
Livingstone, M. Barbara E.
McNulty, Breige A.
Lyons, Jacqueline
Walton, Janette
Flynn, Albert
Segurado, Ricardo
Dean, Moira
Spence, Michelle
McCaffrey, Tracy A.
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Cambridge University Press
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The present analysis aimed to investigate the changes in the reported portion sizes (PS) of foods and beverages commonly consumed by Irish adults (18–64 years) from the North South Ireland Food Consumption Survey (NSIFCS) (1997–2001) and the National Adult Nutrition Survey (NANS) (2008–10). Food PS, which are defined as the weight of food (g) consumed per eating occasion, were calculated for comparable foods and beverages in two nationally representative cross-sectional Irish food consumption surveys and were published in NSIFCS and NANS. Repeated measure mixed model analysis compared reported food PS at the total population level as well as subdivided by sex, age, BMI and social class. A total of thirteen commonly consumed foods were examined. The analysis demonstrated that PS significantly increased for five foods (‘white sliced bread’, ‘brown/wholemeal breads’, ‘all meat, cooked’, ‘poultry, roasted’ and ‘milk’), significantly decreased for three (‘potatoes’, ‘chips/wedges’ and ‘ham, sliced’) and did not significantly change for five foods (‘processed potato products’, ‘bacon/ham’, ‘cheese’, ‘yogurt’ and ‘butter/spreads’) between the NSIFCS and the NANS. The present study demonstrates that there was considerable variation in the trends in reported food PS over this period.
Food portion sizes , Food portion size comparisons , Nationally representative dietary surveys
O'Brien, S. A., Livingstone, M. B. E., McNulty, B. A., Lyons, J., Walton, J., Flynn, A., Segurado, R., Dean, M., Spence, M., McCaffrey, T. A., Pourshahidi, L. K., Nugent, A. P. and Gibney, E. R. (2015) 'Secular trends in reported portion size of food and beverages consumed by Irish adults', British Journal of Nutrition, 113(7), pp. 1148-1157. doi:10.1017/S0007114515000276
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© The Authors 2015. Published by Cambridge University Press (CUP) on behalf of The Nutrition Society