Online Randomized Experiment Evaluating Front-of-Package Nutrition Labeling Systems
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 5,638
- 试验地点
- 2
- 主要终点
- Healthfulness of participants' grocery selections
研究概览
简要总结
The goal of this study is to determine whether certain front-of-package food labeling systems improve the healthfulness of consumers' grocery selections. US adults who are their households' primary shoppers will complete a shopping task in a naturalistic online grocery store. They will be exposed to different front-of-package food labeling systems and asked to shop for groceries. The online store will record participants' selections. Participants will also be asked to complete survey measures.
详细描述
This study aims to determine whether certain front-of-package food labeling systems improve the healthfulness of consumers' grocery selections. The survey research company Cloud Research will recruit a sample of approximately 5,610 US adults ages 18+ who read and speak English and who are their households' primary grocery shopper.
Participants will complete a between-subjects online randomized experiment. They will be randomized to 1 of 6 front-of-package labeling systems: 1) positive labels, 2) spectrum labels, 3) Food and Drug Administration (FDA) high in labels, 4) FDA traffic light labels, 5) FDA high in labels plus positive labels, or 6) FDA traffic light labels plus positive labels. Participants will complete a shopping task in a naturalistic online grocery store. Participants will be instructed to shop as they usually would for items in the following categories: non-alcoholic beverages (e.g., juice, coffee, tea, soda, sports drinks, water), breads and baked goods, breakfast cereals, soups, boxed and frozen meals, and snacks (e.g., chips, crackers, nuts, applesauce, dried fruit). They will be given a budget based on average spending in these categories in a large supermarket chain. The store will record participants' selections. After completing the shopping task, participants will complete an online survey.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Aged 18 years or older
- •Reside in the US
- •Can read and speak English
- •Are their household's primary shopper (do 50% or more of the grocery shopping for their household)
排除标准
- •Under the age of 18
- •Reside outside of the United States
- •Unable to complete a survey in English
- •Are not their household's primary shopper (do <50% of the grocery shopping for their household)
结局指标
主要结局
Healthfulness of participants' grocery selections
时间窗: Assessed from enrollment to end of one-time, 30-minute online study survey
The study will assess healthfulness of participants' grocery selections as the weighted average Ofcom Nutrient Profiling Model score of the products the participants select in the shopping task, weighted by the number of servings in each product. Ofcom Nutrient Profiling Model scores will be calculated for each product participants select. Products receive higher Ofcom scores when they contain lower calorie, saturated fat, sodium, and sugar density, higher protein and fiber density, and more fruits, vegetables, legumes, and nuts. The investigators will calculate the weighted average score across participants' selections, weighting by the number of servings participants select of that product. The Ofcom Nutrient Profiling Model score ranges from 0 to 100, where higher scores indicate healthier products.
次要结局
- Guiding Stars scores of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Number of items selected that are high in ≥1 nutrient of concern(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Calorie density of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Sugar density of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Sodium density of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Saturated fat density of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Fiber density of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Protein density of participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total calories selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total sodium selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total spending on participants' grocery selections(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total sugar selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total saturated fat selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total fiber selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total protein selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Noticing of front-of-package labeling systems(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Thinking about health(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Perceived understandability of the front-of-package labeling system(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Total number of items selected(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Correct identification of healthier items(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Use of front-of-package labeling systems(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Perceived helpfulness of the front-of-package labeling system(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Perceived trustworthiness of the front-of-package labeling system(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Public support for front-of-package labeling system(Assessed from enrollment to end of one-time, 30-minute online study survey)
- Negative emotional reactions(Assessed from enrollment to end of one-time, 30-minute online study survey)
研究者
Jason Block
Associate Professor
Harvard Pilgrim Health Care