The portion size effect on food intake. An anchoring and adjustment process?

Marchiori, David; Papies, Esther K.; Klein, Olivier

doi:10.1016/j.appet.2014.06.018

Cited by 77 publications

(68 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, no research so far has identified effective ways to prevent people from eating more from large than from small packs. In the present paper, we propose a strategy to prevent the pack size effect that is based on the perspective that consumers are uncertain about how much they should eat and as a result rely on the portion or pack size to determine their consumption quantity (Marchiori, Papies, & Klein, 2014;Wansink & Chandon, 2014). We hypothesized that a clear serving size recommendation will provide consumers with a more suitable quantity to base their consumption on, so that they will rely less on the pack size, and the pack size effect will be reduced.…”

Section: Introductionmentioning

confidence: 99%

Preventing the pack size effect: Exploring the effectiveness of pictorial and non-pictorial serving size recommendations

2015

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Preventing the pack size effect: Exploring the effectiveness of pictorial and non-pictorial serving size recommendations

2015

Self Cite

View full text Add to dashboard Cite

“…For example, physical features such as food shape influence children's food preferences (22). Food PS cues may influence consumption by providing 1) information about the amount available to consume (20) or 2) a reference point for an amount that is socially appropriate to consume (21). Food ED also influences the amount of energy consumed (25).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have investigated the impact of visual food characteristics, such as the PS, on eating behaviors (20)(21)(22)(23)(24). For example, physical features such as food shape influence children's food preferences (22).…”

Section: Introductionmentioning

confidence: 99%

“…On the basis of the cognitive influences that food PSs may have in anticipation of a meal (20,21,23,24,26), we hypothesized that large-PS cues compared with small-PS cues would activate regions that are responsible for cognitive control. Because the food energy content is positively associated with the activation of appetitive brain networks (14,27), we hypothesized that high-ED cues compared with low-ED cues would activate regions that are involved in sensory and reward processing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Food portion size and energy density evoke different patterns of brain activation in children

Fearnbach

Wilson

Fisher

et al. 2017

The American Journal of Clinical Nutrition

View full text Add to dashboard Cite

Background: Large portions of food promote intake, but the mechanisms that drive this effect are unclear. Previous neuroimaging studies have identified the brain-reward and decision-making systems that are involved in the response to the energy density (ED) (kilocalories per gram) of foods, but few studies have examined the brain response to the food portion size (PS). Objective: We used functional MRI (fMRI) to determine the brain response to food images that differed in PSs (large and small) and ED (high and low). Design: Block-design fMRI was used to assess the blood oxygen leveldependent (BOLD) response to images in 36 children (7-10 y old; girls: 50%), which was tested after a 2-h fast. Pre-fMRI fullness and liking were rated on visual analog scales. A whole-brain cluster-corrected analysis was used to compare BOLD activation for main effects of the PS, ED, and their interaction. Secondary analyses were used to associate BOLD contrast values with appetitive traits and laboratory intake from meals for which the portions of all foods were increased. Results: Compared with small-PS cues, large-PS cues were associated with decreased activation in the inferior frontal gyrus (P , 0.01). Compared with low-ED cues, high-ED cues were associated with increased activation in multiple regions (e.g., in the caudate, cingulate, and precentral gyrus) and decreased activation in the insula and superior temporal gyrus (P , 0.01 for all). A PS 3 ED interaction was shown in the superior temporal gyrus (P , 0.01). BOLD contrast values for high-ED cues compared with low-ED cues in the insula, declive, and precentral gyrus were negatively related to appetitive traits (P , 0.05). There were no associations between the brain response to the PS and either appetitive traits or intake. Conclusions: Cues regarding food PS may be processed in the lateral prefrontal cortex, which is a region that is implicated in cognitive control, whereas ED activates multiple areas involved in sensory and reward processing. Possible implications include the development of interventions that target decision-making and reward systems differently to moderate overeating.Am J Clin Nutr 2017;105:295-305.

show abstract

“…They argued that, in many cases, the serving size of a portion of food is ambiguous, and consumers are thus left to draw their own inferences about how much they should eat. Others have also suggested that portion size can provide an anchor that strongly influences decisions about how much to eat (Marchiori, Papies, & Klein, 2014). Providing objective serving-size information, then, should eliminate the need for people infer the appropriate amount to eat and should reduce the reliance on external cues (i.e., portion size).…”

Section: Introductionmentioning

confidence: 95%