Food taxes and calories purchased in the virtual supermarket: a preliminary study

Maartje Poelman, Willemieke Kroeze, Wilma Waterlander, Michiel de Boer, Ingrid Steenhuis

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Purpose: The purpose of this paper is to examine the effectiveness of three food taxation schemes on energy (kcal), saturated fat (gram) and sugar (gram) purchased in the virtual supermarket. Design/methodology/approach: Based on the literature, three food taxation schemes were developed (sugar tax, saturated fat tax and a nutrient profiling tax) and implemented in the three-dimensional virtual supermarket. A randomized control trial was conducted to determine the differences in the amount of energy (kcal), saturated fat (gram) and sugar (gram) purchased for a one-week food basket. Findings: In total, 191 Dutch adults were randomly assigned to a sugar-tax condition (n=48), a saturated fat-tax condition (n=37), a nutrient profiling-tax condition (n=62) and a control (no-tax) condition (n=44). Fully adjusted models indicated that compared to the no-tax condition, no significant effects of a sugar-tax condition (B: −2,041 kcal (95% CI −5,350 to 1,914)), saturated fat-tax condition (B: −2,717 kcal (95% CI −6,596 to 1,163)) or nutrient profiling-tax condition (B: −1,124 kcal (95% CI −4,538 to 2,292)) were found on the amount of energy purchased. Also, none of the taxation schemes showed significant effects on saturated fat or sugar purchased. Originality/value: This is one of the first randomized controlled trials testing the effectiveness of a variety of food taxes in the virtual supermarket. This preliminary study provides important directions for future research (the design, results, as well as the lessons learned with respect to recruitment, incentives and technology).

Original languageEnglish
Pages (from-to)2559-2570
Number of pages12
JournalBritish Food Journal
Volume119
Issue number12
DOIs
Publication statusPublished - 1 Jan 2017

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Taxes
supermarkets
taxes
Fats
Food
sugars
Tax
Supermarkets
Motivation
Research Design
Randomized Controlled Trials
energy
nutrients
Technology
saturated fats

Keywords

  • Computer software
  • Consumer purchasing decisions
  • Food policy
  • Prices
  • Public health
  • Supermarkets

Cite this

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title = "Food taxes and calories purchased in the virtual supermarket: a preliminary study",
abstract = "Purpose: The purpose of this paper is to examine the effectiveness of three food taxation schemes on energy (kcal), saturated fat (gram) and sugar (gram) purchased in the virtual supermarket. Design/methodology/approach: Based on the literature, three food taxation schemes were developed (sugar tax, saturated fat tax and a nutrient profiling tax) and implemented in the three-dimensional virtual supermarket. A randomized control trial was conducted to determine the differences in the amount of energy (kcal), saturated fat (gram) and sugar (gram) purchased for a one-week food basket. Findings: In total, 191 Dutch adults were randomly assigned to a sugar-tax condition (n=48), a saturated fat-tax condition (n=37), a nutrient profiling-tax condition (n=62) and a control (no-tax) condition (n=44). Fully adjusted models indicated that compared to the no-tax condition, no significant effects of a sugar-tax condition (B: −2,041 kcal (95{\%} CI −5,350 to 1,914)), saturated fat-tax condition (B: −2,717 kcal (95{\%} CI −6,596 to 1,163)) or nutrient profiling-tax condition (B: −1,124 kcal (95{\%} CI −4,538 to 2,292)) were found on the amount of energy purchased. Also, none of the taxation schemes showed significant effects on saturated fat or sugar purchased. Originality/value: This is one of the first randomized controlled trials testing the effectiveness of a variety of food taxes in the virtual supermarket. This preliminary study provides important directions for future research (the design, results, as well as the lessons learned with respect to recruitment, incentives and technology).",
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Food taxes and calories purchased in the virtual supermarket : a preliminary study. / Poelman, Maartje; Kroeze, Willemieke; Waterlander, Wilma; de Boer, Michiel; Steenhuis, Ingrid.

In: British Food Journal, Vol. 119, No. 12, 01.01.2017, p. 2559-2570.

Research output: Contribution to JournalArticleAcademicpeer-review

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