The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior

SKRETKOWICZ, Yvette Luise

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The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior – Mgr. Yvette Luise SKRETKOWICZ, MSc.

Mgr. Yvette Luise SKRETKOWICZ, MSc.

Disertační práce

The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior

Abstract:

Abstract Purpose: Global unhealthy eating habits increase the risk of disease and mortality. This dissertation examines the Nutri-Score as a visual nudging tool to help consumers make healthier food choices. How the Nutri-Score impacts consumer choice in countries such as Germany, Poland and Central America. Originality/Value: The dissertation is cumulative research consisting of seven studies that show the different perspectives on the Nutri-Score and its impact. he evaluates how the Nutri-Score is perceived in Germany and Poland and examines how it could help in Central America, where it has not yet been introduced. It also examines how consumers in Mexico, Belize and Colombia view front-of-package labels such as the Nutri-Score. The influence of sustainability labels on purchasing behavior is also examined and parallels drawn with the Nutri-Score. Study Design: The dissertation consists of seven studies with different research designs. At the beginning, an online survey was conducted to test the hypotheses with a quantitative analysis. In a second study, qualitative expert interviews were conducted. This was followed in the third study by a qualitative analysis of the perception of the Nutri-Score in Central America by selected consumers in Belize. This was followed in the fourth study by a further qualitative study in which consumers in Mexico, Belize and Colombia were interviewed to determine their opinions on front-of-package labels. Further studies dealt with a literature analysis and the investigation of consumer behavior in Poland through choice experiments with yogurt products. Finally, an online survey was conducted on the perception of ESG labels and their influence on purchasing behavior, which used conjoint analysis to determine consumer preferences. The different approaches provide a broader picture of the different perspectives on consumer behavior and perception of labels. Together, they enable a comprehensive examination of the factors that influence purchasing decisions and show how consumers in different countries react to labeling strategies. Findings: The Nutri-Score acts as a nudging tool and motivates consumers to choose healthier products. In Belize, mandatory labeling increases comparability and buyer confidence. In Poland, the Nutri-Score has a strong impact on purchasing decisions, especially in the case of extreme ratings. However, the influence varies depending on the product. The ESG study shows that government-certified labels have a strong influence on purchasing decisions. In Mexico, Colombia and Belize, labels help to avoid sugar, salt and fat, although in Belize, expiry dates and ingredients are still more likely to be considered. A literature review shows that the Nutri-Score is easy to understand and promotes consumers' health decisions. Practical Implications: The studies independently indicate the value of the Nutri-Score for consumers. Thus, the European Unions abandonment of a uniform introduction of the Nutri-Score can be critically questioned. The study conducted in Poland suggests differences between even related product groups, which provides an empirical justification for the recent changes to the Nutri-Score algorithm. Research Limitations: Research is mainly based on hypothetical scenarios and offers little insight into actual consumer behavior. Further studies, especially in developing countries, are needed to better understand the effectiveness of the Nutri-Score and similar systems in different cultures. …více

Abstract:

Abstract Purpose: Global unhealthy eating habits increase the risk of disease and mortality. This dissertation examines the Nutri-Score as a visual nudging tool to help consumers make healthier food choices. How the Nutri-Score impacts consumer choice in countries such as Germany, Poland and Central America. Originality/Value: The dissertation is cumulative research consisting of seven studies that show the different perspectives on the Nutri-Score and its impact. he evaluates how the Nutri-Score is perceived in Germany and Poland and examines how it could help in Central America, where it has not yet been introduced. It also examines how consumers in Mexico, Belize and Colombia view front-of-package labels such as the Nutri-Score. The influence of sustainability labels on purchasing behavior is also examined and parallels drawn with the Nutri-Score. Study Design: The dissertation consists of seven studies with different research designs. At the beginning, an online survey was conducted to test the hypotheses with a quantitative analysis. In a second study, qualitative expert interviews were conducted. This was followed in the third study by a qualitative analysis of the perception of the Nutri-Score in Central America by selected consumers in Belize. This was followed in the fourth study by a further qualitative study in which consumers in Mexico, Belize and Colombia were interviewed to determine their opinions on front-of-package labels. Further studies dealt with a literature analysis and the investigation of consumer behavior in Poland through choice experiments with yogurt products. Finally, an online survey was conducted on the perception of ESG labels and their influence on purchasing behavior, which used conjoint analysis to determine consumer preferences. The different approaches provide a broader picture of the different perspectives on consumer behavior and perception of labels. Together, they enable a comprehensive examination of the factors that influence purchasing decisions and show how consumers in different countries react to labeling strategies. Findings: The Nutri-Score acts as a nudging tool and motivates consumers to choose healthier products. In Belize, mandatory labeling increases comparability and buyer confidence. In Poland, the Nutri-Score has a strong impact on purchasing decisions, especially in the case of extreme ratings. However, the influence varies depending on the product. The ESG study shows that government-certified labels have a strong influence on purchasing decisions. In Mexico, Colombia and Belize, labels help to avoid sugar, salt and fat, although in Belize, expiry dates and ingredients are still more likely to be considered. A literature review shows that the Nutri-Score is easy to understand and promotes consumers' health decisions. Practical Implications: The studies independently indicate the value of the Nutri-Score for consumers. Thus, the European Unions abandonment of a uniform introduction of the Nutri-Score can be critically questioned. The study conducted in Poland suggests differences between even related product groups, which provides an empirical justification for the recent changes to the Nutri-Score algorithm. Research Limitations: Research is mainly based on hypothetical scenarios and offers little insight into actual consumer behavior. Further studies, especially in developing countries, are needed to better understand the effectiveness of the Nutri-Score and similar systems in different cultures. …více

Keywords

Nutri-Score visual nudging nutrition policy consumer behaviour choice experiment expert interview

Jazyk práce: angličtina

Datum vytvoření / odevzdání či podání práce: 10. 10. 2025

Zveřejnit od: 31. 12. 2999

Obhajoba závěrečné práce

Vedoucí: Dr. Jens K. Perret

Citační záznam

Citovat tuto práci

Citace dle ISO 690:

SKRETKOWICZ, Yvette Luise. \textit{The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior}. Online. Disertační práce. Ústí nad Labem: Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, Fakulta sociálně ekonomická. 2025. Dostupné z: https://theses.cz/id/bxiodq/.

@PhdThesis{SKRETKOWICZ2025thesis,
AUTHOR = "SKRETKOWICZ, Yvette Luise",
TITLE = "The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior [online]",
YEAR = "2025 [cit. 2026-10-21]",
TYPE = "Disertační práce",
SCHOOL = "Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, Fakulta sociálně ekonomickáÚstí nad Labem",
NOTE = "SUPERVISOR: Dr. Jens K. Perret",
URL = "https://theses.cz/id/bxiodq/",
}

@PhdThesis{SKRETKOWICZ2025thesis,
AUTHOR = {SKRETKOWICZ, Yvette Luise},
TITLE = {The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior},
YEAR = {2025},
TYPE = {Disertační práce},
INSTITUTION = {Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, Fakulta sociálně ekonomická},
LOCATION = {Ústí nad Labem},
SUPERVISOR = {Dr. Jens K. Perret},
URL = {https://theses.cz/id/bxiodq/},
URL_DATE = {2026-10-21},
}

{{Citace kvalifikační práce
 | příjmení = SKRETKOWICZ
 | jméno = Yvette Luise
 | instituce = Univerzita Jana Evangelisty Purkyně v Ústí nad Labem, Fakulta sociálně ekonomická
 | titul = The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior
 | url = https://theses.cz/id/bxiodq/
 | typ práce = Disertační práce
 | vedoucí = Dr. Jens K. Perret
 | rok = 2025
 | počet stran =
 | strany =
 | citace = 2026-10-21
 | poznámka =
 | jazyk = 
}}

Jak správně citovat práci

SKRETKOWICZ, Yvette Luise. The Nutri-Score - A Quantitative Study of the Effectiveness of Visual Nudging on Consumer Behavior. Ústí nad Labem, 2025. disertační práce (Ph.D.). UNIVERZITA JANA EVANGELISTY PURKYNĚ V ÚSTÍ NAD LABEM. Fakulta sociálně ekonomická

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Instituce archivující a zpřístupňující práci: UNIVERZITA JANA EVANGELISTY PURKYNĚ V ÚSTÍ NAD LABEM, Fakulta sociálně ekonomická

Odkaz na soubor do lokálního úložiště instituce

UNIVERZITA JANA EVANGELISTY PURKYNĚ V ÚSTÍ NAD LABEM

Fakulta sociálně ekonomická

Doktorský studijní program / obor:
Regulation and behavioural studies / Regulation and behavioural studies

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