Portion Size Selection in Children: Effect of Sensory Imagery for Snacks Varying in Energy Density

Lange, Christine, Camille Schwartz, Célia Hachefa, Yann Cornil, Sophie Nicklaus, and Pierre Chandon, "Portion size selection in children: Effect of sensory imagery for snacks varying in energy density," Appetite, in press, 2020

DOI: 10.1016/j.appet.2020.104656

28 Pages Posted: 13 Apr 2020

See all articles by Christine Lange

Christine Lange

University of Burgundy Franche-Comté

Camille Schwartz

University of Burgundy Franche-Comté - Taste and Food Science Center

Célia Hachefa

INSEAD

Yann Cornil

University of British Columbia (UBC) - Division of Marketing

Sophie Nicklaus

French National Institute for Agricultural Research (INRA)

Pierre Chandon

INSEAD

Date Written: March 8, 2020

Abstract

Food sensory imagery – creating a vivid mental image of the sensory experience of eating – can lead to the selection of smaller portions because it serves as a reminder that eating enjoyment does not necessarily increase with portion size. The evidence is mostly limited to adults and to energy-dense foods for which it is particularly difficult to predict the satiating effects of consumption quantity. The objective was to study how food sensory imagery influences portion size selection of foods varying in energy density (brownie and applesauce) by 7- to 11-year-old children. During after-school time, 171 children were randomized into two conditions. Children in the food sensory imagery condition were asked to imagine the taste, smell, and texture of eating palatable foods, i.e., chocolate cereal, chocolate waffle, and chocolate candies. Children in the control condition performed a similar sensory imagery task for non-food-related activities. Children were then asked to choose between the recommended serving size, a 50% larger portion, and a 125% larger portion of either brownie or applesauce. One week later, they were placed in the same condition for the other food. Compared to the control condition, food sensory imagery led children to choose 7.1% less brownie but had no effect on applesauce portion selection. Exploratory findings showed that the food sensory imagery intervention was especially effective at reducing brownie portion size selection among children who were moderately hungry, who usually eat fast, and whose parents pressure them to eat. In conclusion, food sensory imagery may be a useful intervention to nudge children towards healthier portion size choices because it reduces the selected portion size of an energy-dense snack without reducing the selected portion size of a healthier snack.

Keywords: Mental Imagery, Food Choice, Mindful Eating, Childhood, Energy Density, Hunger

JEL Classification: I12, I18, M31, M37, M39, Q18, L66

Suggested Citation

Lange, Christine and Schwartz, Camille and Hachefa, Célia and Cornil, Yann and Nicklaus, Sophie and Chandon, Pierre, Portion Size Selection in Children: Effect of Sensory Imagery for Snacks Varying in Energy Density (March 8, 2020). Lange, Christine, Camille Schwartz, Célia Hachefa, Yann Cornil, Sophie Nicklaus, and Pierre Chandon, "Portion size selection in children: Effect of sensory imagery for snacks varying in energy density," Appetite, in press, 2020, DOI: 10.1016/j.appet.2020.104656, Available at SSRN: https://ssrn.com/abstract=3553720 or http://dx.doi.org/10.2139/ssrn.3553720

Christine Lange

University of Burgundy Franche-Comté ( email )

45 D, Av. de l’Observatoire
Besancon, Besancon F-25000
France

Camille Schwartz

University of Burgundy Franche-Comté - Taste and Food Science Center ( email )

France

Célia Hachefa

INSEAD ( email )

Boulevard de Constance
77305 Fontainebleau Cedex
France

Yann Cornil

University of British Columbia (UBC) - Division of Marketing ( email )

Canada

HOME PAGE: http://www.yanncornil.com/

Sophie Nicklaus

French National Institute for Agricultural Research (INRA) ( email )

147 rue de l'Université
Cedex 07
Paris, 78-Yvelines 75338
France

Pierre Chandon (Contact Author)

INSEAD ( email )

Boulevard de Constance
77305 Fontainebleau Cedex
France

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