In Mexico, the inclusion of a Front-of-Pack Label in the Official Mexican Standard-051 (NOM-051 for its Spanish acronym) has been widely discussed for years by different stakeholder groups. In 2019, the NOM-051 modification project was proposed, which included front-of-pack warning labels. To be modified, it went through a public consultation period where stakeholders sent their comments to be reviewed and considered. The purpose of this study was to analyze the perspectives of key stakeholders during the public consultation of the NOM-051 modification project in order to understand their positions and their effect on the final public policy.