Background: Most studies on social influencer marketing techniques have focused on the promotion of unhealthy foods whereas little is known about the promotion of healthier foods. The present experimental study investigated whether a popular real versus fictitious fit influencer is more successful in promoting healthy food products. In addition, we examined the role of parasocial interaction as an underlying mechanism of healthy food product endorsement.Methods: We used a randomized between-subject design with 154 participants (mean age: 24.0 years). Viewers’ product attitude and purchase intention were tested after exposure to an Instagram post by a popular real fit influencer (n = 77) or fictitious fit influencer (n = 77).Results: Results showed that parasocial interaction mediated the relation between the type of influencer and product attitude as well as purchase intention. Parasocial interaction was higher for participants exposed to the popular real fit influencer compared to the fictitious fit influencer, leading to higher healthy food brand attitude and purchase intention.Discussion: The findings showed that it is crucial for social influencers to establish a warm personal relationship and connection with the their followers when promoting a healthy product successfully. We suggest that the promotion of healthy foods could be more successful in public health when using popular fit influencers.

Background: Previous studies have focused on the effects of television advertising on the energy intake of children. However, the rapidly changing food-marketing landscape requires research to measure the effects of nontraditional forms of marketing on the health-related behaviors of children.

Purpose: The purpose of this study has three primary aims. The first is to examine the amount of time children spend per week on viewing vlogs. Second, the authors explored children’s awareness and understanding of the brand or product placement in vlogs. Finally, the authors explored children’s self-perceived susceptibility to the potential persuasive effects of these vlogs. Design/methodology/approach: Self-reported measurements were assessed among children (N = 127, 10-13 years of age). Findings: Results indicate that the majority of children frequently view vlogs and that their degree of bonding with the vlogger predicted the time spend on viewing vlogs. Children recalled products and brands that were shown in vlogs, which were mostly food and beverages and considered themselves and others affected by endorsements in vlogs. Research limitations/implications: Only cross-sectional data were collected; these data cannot be used to analyze behavior over a period of time or draw causal inferences. Practical implications: Considering the popularity of vlogs among young people, it is important to acquire more insight into the frequency and amount of time children spend on viewing vlogs and children’s processing of persuasive messages in vlogs. This may lead to a better understanding of underlying processes and prediction of the outcomes of advertising through this form of media content. Current findings raise further questions about the persuasive content of vlogs. Originality/value: Because of the popularity of online (social media) channels among youth, companies dedicate a significant proportion of their marketing budget on online influencer marketing. Therefore, it is important to acquire insight into children’s processing of online persuasive messages. To the authors’ knowledge, there is no empirical research on children’s potential bonding with popular vloggers and their awareness and understanding of the brand or product placement in vlogs.