A Randomized Controlled Trial Examining How TikTok Influencers' Posts With Versus Without Food Affect Youth Dietary Choices

What this Trial Is About

Researchers are investigating how TikTok influencer food advertisements affect calorie purchases among youth aged 10 to 13. The study compares two groups of participants: those who see influencers posting with food and those who see influencers without food. The goal is to understand how these ads might influence dietary choices in young people. Participants will be randomly assigned to one of two groups. One group will view TikTok influencer posts showing food, while the other will see similar posts without food. Each participant will watch six ads in total, including four related to their group and two filler ads, presented in mixed order. After viewing the ads, participants will complete a virtual snack selection task using a vending machine where they will choose one snack and one beverage, each costing $2. They will then review the ads again and answer survey questions about their reactions. During the study visit, participants will complete a 15-minute survey including the ad viewing and snack selection task. They will also provide demographic information such as self-reported height and weight. Researchers will measure the total calories chosen from the virtual vending machine as the main outcome. The study includes double-blind randomization and is sponsored by NYU Langone Health. The entire participation involves these activities in a single session.

Dietary and Cognitive Effects of Food Ads Posted by TikTok Influencers