Testing Product Messages in Colombia
Condition: Obesity
Study type: Interventional

Summary: 
      Purpose: To better understand the impact of different front-of-package labels (FOPLs) on
      consumer purchasing intentions and ability to identify unhealthy foods.

      Participants: ~8,000 Colombians, recruited from Offerwise, that are 18 years or older.

      Procedures (methods): Participants will be randomly assigned to view images of food and drink
      products with either a nutrient warning label, Guideline Daily Amount label, Nutriscore
      label, or no-label control. They will be asked a series of questions about the products and
      the labels (excluding control group) on them. Questions will also include standard
      demographic and health related variables.
    

Detailed description: 
      Participants will be recruited from Offerwise (an online panel research company). Following
      online consent, participants will be randomly assigned to view different labels (explained
      below) on food and drink packaging. Participants will answer self-reported responses to the
      content (e.g., elaboration, beliefs, perceived healthfulness). After being randomized to one
      of the four groups and answering questions (e.g. which product is healthier, which product
      would you buy), the participant will see all three labels and select which is most dissuading
      from consuming a product high in a nutrient. At the end, the participant will answer
      demographic questions.

      Participants will be randomized to see either a no-label control or 1 of 3 nutrient labels.
      The participants will see 5 types of products with the labels (fruit drinks, yogurt, sliced
      bread, cookies, and breakfast cereal).

      Nutrient labels:

        1. Guideline Daily Amount label

        2. Nutriscore label

        3. Adapted Peruvian nutrient warning label (high in sugar, high in saturated fat, high in
           salt/sodium)
    

Intervention name(s): Control; Nutriscore Label; Adapted Peruvian Nutrient Label; Guideline Daily Amount Label
Intervention type(s): Other; Behavioral; Behavioral; Behavioral
Intervention description(s): Participants will be shown images of juice, bread, yogurt, cookies, and cereal without any added front-of-package labels.; A front-of-package Nutriscore label will be applied to images of juice, bread, yogurt, cookies, and cereal. This label applies a score of A, B, C, D, or E based on the product's nutrition profile.; A front-of-package octagonal nutrient label will be applied to images of juice, bread, yogurt, cookies, and cereal. The label text informs consumers if a product is high in sugar, saturated fat, or salt/sodium. These labels were developed by the Peruvian government and adapted by investigators.; A front-of-package Guideline Daily Amount label will be applied to images of juice, bread, yogurt, cookies, and cereal. The label shows the amount and percent of daily value of calories, total fat, saturated fat, sugar, and sodium in one serving of a product.
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: None (Open Label)
Primary purpose: Prevention