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The randomisation of the experimental conditions and groups is completed by adopting a Williams design to ensure the order of categories of products and the order of products within categories was ran

2 trials

Sponsors

World Health Organization Regional Office for the Americas

Conditions

Consumer health perceptions and purchase behaviours Nutritional, Metabolic, EndocrineImprovement on consumers' ability to correctly identify products with excessive amounts of sugars, fats, and sodium, to correctly identify the product option that is the least harmful to health, and to choose to purchase the least harmful choices or none of them options if they are all harmful. Other

Unknown Phase

Evaluation and comparison of the effectiveness of front-of-package labeling systems for pre-packaged and ultra-processed foods and non-alcoholic beverages in Bolivia
Active, not recruitingISRCTN17707440
World Health Organization Regional Office for the AmericasImprovement on consumers' ability to correctly identify products with excessive amounts of sugars, fats, and sodium, to correctly identify the product option that is the least harmful to health, and to choose to purchase the least harmful choices or none of them options if they are all harmful. Other
Start: 2023-07-17Target: 3600Updated: 2025-10-27
Influence of front-of-pack labelling schemes on consumer health perceptions and purchase behaviours in Trinidad and Tobago
RecruitingISRCTN10830335
World Health Organization Regional Office for the AmericasConsumer health perceptions and purchase behaviours Nutritional, Metabolic, Endocrine
Start: 2025-09-08Target: 1920Updated: 2025-09-15