The main goal of this paper was to examine the impact of fast food promotion through social media on adolescents, focusing on its influence on shaping their attitudes, behaviors, and eating habits. Digital media is an integral part of adolescents' daily lives, and they are not always able to recognize the true intent of marketing. The influence of the people they follow is growing, and global fast food companies spend enormous amounts of money advertising their products, which, according to the research, leads to an increase in the consumption of unhealthy food that they promote. We defined marketing communication, digital media that can be used for various purposes, and digital marketing, which has opened the door for companies to better and more precisely target consumers. The forms and techniques of food marketing were outlined to better understand the different approaches used to achieve greater impact on consumers. Companies are increasingly tracking trends aimed at adolescents as a consumer group and are using this to raise awareness of their products, influence adolescents, and create unique opportunities for marketing campaigns. The research results showed that exposure to fast food promotion on social media is associated with positive attitudes towards the advertised consumption/purchase of the same, and that attitudes towards fast food can mediate between recall and the purchase/consumption of unhealthy food.