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Nudging Healthy Choices in Food Search Through Visual Attractiveness.

Alain D Starke1,2, Martijn C Willemsen3,4, Christoph Trattner2

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Summary

Promoting healthier recipes with attractive images and top search result placement encourages users to make better food choices online. This strategy enhances healthy eating without sacrificing user satisfaction.

Keywords:
food healthfood searchinformation retrievalnudgingrecipes

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Area of Science:

  • Human-Computer Interaction
  • Behavioral Economics
  • Nutritional Science

Background:

  • Recipe websites often promote unhealthy, popular dishes.
  • Understanding user behavior in online food searches is crucial for promoting healthier options.

Purpose of the Study:

  • To investigate if visual attractiveness of recipe images and search result ranking can promote healthier food choices.
  • To assess the impact of these interventions on user satisfaction.

Main Methods:

  • Modelling visual attractiveness of recipe images.
  • Conducting a user study with 239 participants searching for online recipes.
  • Analyzing user selections based on image attractiveness and search result position.

Main Results:

  • Visually attractive images significantly increased the selection of healthier recipes.
  • Placing healthier recipes at the top of search results also promoted their selection.
  • These interventions successfully promoted less popular, healthier recipes without reducing user satisfaction.

Conclusions:

  • Visual cues and search result optimization are effective strategies for nudging users towards healthier online recipe choices.
  • The findings suggest a practical approach for recipe websites to encourage healthier eating habits.
  • Interventions can enhance public health outcomes by influencing food choices in digital environments.