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Presenting a food in multiple smaller units increases expected satiety.

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Segmentation, presenting food in smaller units, increases expected satiety (ES) and perceived volume (PV). This finding suggests food design can aid in healthy weight management by influencing hunger expectations.

Keywords:
Energy intakeExpected satietyPerceived volumePortion sizeSegmentation

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Area of Science:

  • Behavioral Science
  • Food Science
  • Nutritional Psychology

Background:

  • Food segmentation (multiple smaller units) reduces intake and increases consumption estimates.
  • Previous research focused on ad libitum intake, not typical pre-selected meals.
  • Expected satiety (ES) predicts portion size selection.

Purpose of the Study:

  • To test if food segmentation increases ES.
  • To investigate if perceived volume (PV) mediates the segmentation-ES relationship.

Main Methods:

  • Sixty-eight participants judged ES and PV for equicaloric portions of three foods.
  • Foods were presented as single units versus multiple smaller units (3 or 6).
  • Judgments were made via computer-based assessments.

Main Results:

  • Segmentation consistently increased ES; segmented foods were expected to be more satiating (p < 0.005).
  • The effect of segmentation on ES was mediated by increased PV.
  • Perceived volume significantly influenced expected satiety.

Conclusions:

  • Food segmentation enhances expected satiety, likely through increased perceived volume.
  • Understanding segmentation's impact on ES can inform food design for weight management.
  • This has implications for developing foods that support healthy eating behaviors.