Increasing serving size increases amount consumed: Catch-22.
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Zlatevska, N., Dubelaar, C. & Holden, S. S. (2011). Increasing serving size increases amount consumed: Catch-22. Paper presented at Bond University, Gold Coast, Australia.
© Copyright Natalina Zlatevska, Chris Dubelaar & Stephen Holden, 2011
Abstract
The effect of serving size on consumption is well-established (see Chandon and Wansink, 2011 for a review). The larger the serve, the greater the amount consumed. However, little attention has been given to quantifying the serving size effect. We know that size influences volume consumed, but by how much? The present research used a meta analysis of 67 studies, and a combined N of 2792 respondents, to determine the relative effect of serving size on consumption volume (d=.47). More importantly, we extended our analysis to determine the absolute size of the effect: we found that a doubling of serving size increases consumption by 22%. Finally, we show that the serving size effect is larger among adults than children.
Suggested Citation
Natalina Zlatevska, Chris Dubelaar, and Stephen S. Holden. 2011. "Increasing serving size increases amount consumed: Catch-22." serving size, consumption
Available at: http://works.bepress.com/stephen_holden/9