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

Sinead A. O'Brien, M. Barbara E. Livingstone, Breige A. McNulty, Jacqueline Lyons, Janette Walton, Albert Flynn, Ricardo Segurado, Moira Dean, Michelle Spence, Tracy A. McCaffrey, L. Kirsty Pourshahidi, Anne P. Nugent, Eileen R. Gibney*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1148-1157
Number of pages10
JournalBritish Journal of Nutrition
Issue number7
Early online date19 Mar 2015
Publication statusPublished - 14 Apr 2015


  • Food portion size comparisons
  • Food portion sizes
  • Nationally representative dietary surveys

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics
  • Medicine(all)


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