Objective: To examine the use and impact of social media on 2-way communication between consumers and public organizations in the food safety and nutrition area. Methods: In-depth qualitative study conducted between October, 2012 and January, 2013, using semi-structured interviews in the United Kingdom and Ireland. Sixteen professionals worked on the public interface within 5 national organizations with a role in communicating on food safety and nutrition issues in this thematic analysis. Results: Five main themes were identified: gradual shift toward social media-based queries and complaints; challenges and limitations of social media to deal with queries and complaints; benefits of using social media in query and complaint services; content redesign driven by social media use; and using social media to learn more about consumers. Conclusion and Implications: Social media penetrated and brought new opportunities to food organizations' interactions with the public. Given the increasing use of social media by the public, food organizations need to explore such new opportunities for communication and research.