The purpose of this thesis was to find how social media affects eating behaviour in children. Hence, the aim was to understand the possible effects of social media on eating behaviour in chil-dren (6-17 years) and the research question was ‘how does social media affect eating behaviour in children?’ The applied writing method of this thesis was a literature review. Three (3) electronic online databases were selected which was provided to the students of Laurea University of Applied Sciences such as CINAHL, Sage premier, PubMed and some articles were also from Google Scholar which were all free of charges. Five (5) scientific research articles were selected using different search databases using qualitative analysis method. These articles were relevant to the thesis topic and research question, all of which were published between the year 2010- 2019. Social media provides a platform for communication, interaction, sharing ideas and information through videos, images, messages building a virtual networking community. Facebook, Twitter, Snapchat, Instagram are few of the social media sites that are commonly used by the younger population. The influence of social media on individuals and the norm for beauty standard has led to the development of dieting resulting in changes in eating behaviour. An introduction to social media, eating behaviour and eating disorder are mentioned in the theoret-ical background. The findings of this study indicate that there is a relationship between exposure to all forms of social media and body image concerns, mostly in girls. The number of friends and time spent on these networking sites also determined the increase in internalization, dieting behav-iour and body surveillance. Images and messages encouraging eating disorders (ED) were also shared, however, there were also users who discouraged such behaviours and their messages were shared more than those encouraging eating disorders. There is, in fact, a correlation between social media and eating behaviour, however, the studies were done focusing mainly on Facebook, Internet exposure and Television. A study on such corre-lation should also be done with other social networking sites such as Instagram or Snapchat which are more visually dominant. The authors also recommend further studies to be conducted on younger children both female and male.