You Are What You Eat: A Randomised Controlled Trial of an Appearance-based Dietary Intervention
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 73
- 试验地点
- 1
- 主要终点
- Fruit and vegetable consumption
研究概览
简要总结
This study investigated whether illustration of the facial appearance benefits of fruit and vegetable consumption is able to motivate increased intake of this food group. The investigators hypothesize that individuals witnessing illustrations of the impact of a healthy diet will exhibit improvements in diet relative to a control group receiving only information on the health-benefits of this food group.
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 61 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Student or staff member at University of St Andrews
- •Has access to email account to receive link to weekly online questionnaire.
排除标准
- •Exited study before completion
- •Unable to make dietary changes due to a medical condition
研究组 & 干预措施
Information-only
Selected pages from the British National Health Service (NHS) information booklets ["5 A Day, Just Eat More (fruit & veg)"; pages i, ii, 12-15, 20 & 21] and ["5 A Day, Just Eat More (fruit & veg): What's it all about?"; pages i-ii)] were provided to all participants on completion of baseline questionnaires. The pages provided information on recommended portion sizes, meal planning, health benefits and answered frequently asked diet-related questions
干预措施: Information-only (Behavioral)
Generic-appearance intervention
Participants in the generic appearance intervention group received images to illustrate the impact of fruit and vegetable consumption on skin appearance. Participants in this group were presented with gender congruent stimuli, constructed by averaging the facial shape and colour of four male/female faces.
Participants viewed the gender-congruent set of the resulting stimuli in two forms. Firstly, after completion of baseline questionnaires, images were displayed on a computer monitor. Participants were instructed to select what they perceived as the healthiest face colour, which was recorded by the computer program over two trials.
Participants in this group also received a take-home photo quality leaflet to further illustrate the effect of fruit and vegetable consumption on skin colour.
干预措施: Generic appearance intervention (Behavioral)
Personalised appearance intervention
Participants in this group received stimuli manipulated in identical ways to that received by the generic appearance-intervention group, except the illustrations were performed upon images of the participant's own face.
干预措施: Personalised appearance intervention (Behavioral)
结局指标
主要结局
Fruit and vegetable consumption
时间窗: up to 10 weeks
Participants completed a computerised food frequency questionnaire to establish fruit and vegetable consumption. Participants were asked to retrospectively report consumption frequency of fruit juice, fruit, vegetable juice, salad, vegetable soup and vegetable items over the past seven days. Participants reported consumption of standard portion sizes and were provided with NHS illustrations of portion size guidelines to assist estimations.
次要结局
未报告次要终点
研究者
David Perrett
Principal Investigator
University of St Andrews