Social Psychology Unit, Université Libre de Bruxelles, CP 122, 50, Avenue F.D. Roosevelt, B-1050 Bruxelles, Belgium.
Appetite. 2012 Jun;58(3):814-7. doi: 10.1016/j.appet.2012.01.015. Epub 2012 Jan 28.
While larger containers have been found to increase food intake, it is unclear whether this effect is driven by container size, portion size, or their combination, as these variables are usually confounded. The study was advertised as examining the effects of snack food consumption on information processing and participants were served M&M's for free consumption in individual cubicles while watching a TV show. Participants were served (1) a medium portion of M&M's in a small (n=30) or (2) in a large container (n=29), or (3) a large portion in a large container (n=29). The larger container increased intake by 129% (199 kcal) despite holding portion size constant, while controlling for different confounding variables. This research suggests that larger containers stimulate food intake over and above their impact on portion size.
虽然较大的容器已被发现会增加食物摄入量，但尚不清楚这种效果是由容器大小、份量大小还是它们的组合驱动的，因为这些变量通常是混淆的。这项研究的广告宣传是检查零食消费对信息处理的影响，参与者在观看电视节目的同时被单独安排在小隔间里免费食用 M&M's。参与者被提供（1）小容器中的中等份量的 M&M's（n=30）或（2）大容器中的 M&M's（n=29），或（3）大容器中的大份量的 M&M's（n=29）。尽管保持份量大小不变，但较大的容器仍使摄入量增加了 129%（199 卡路里），同时控制了不同的混杂变量。这项研究表明，较大的容器对食物摄入量的影响超出了其对份量大小的影响。
