Related Experiment Video
Updated: Jun 22, 2026

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method
Published on: February 19, 2021
The effects of degree of acquaintance, plate size, and sharing on food intake
1Department of Psychology, University of Toronto at Mississauga, 3359 Missisissauga Road, Mississauga, Ontario, Canada L5L 1C6.
Abstract:
This study examined the effects of degree of acquaintance, plate size, and sharing on the amount of pasta individuals served themselves and subsequently consumed and whether or not they took second helpings. Fifty-seven pairs of female participants ate a meal of pasta; the members of each pair were either friends or strangers. During the meal, they served themselves either from a common serving bowl or from individual serving bowls and onto either small or large plates. The findings indicated that participants who ate with a friend served and consumed more than those who ate with a stranger, and those who shared served and consumed less than those who did not share. However, this sharing effect seemed to occur only when participants ate from small plates. Whether or not participants reported taking second helpings was influenced by all three of the independent variables.
Related Concept Videos
Regulation of Food Intake
Factors Influencing Attraction I: Proximity
Factorial Design
Cause and Effect
Taste Buds and Receptors
Relationship Formation

