A suspected mass food poisoning incident has affected 777 students and teachers at SMAN 1 Lasem high school in Rembang Regency, Central Java, Indonesia. The incident is believed to be linked to the consumption of a free nutritious meal program, known as Makan Bergizi Gratis (MBG). At least five students required hospitalization due to the severity of their symptoms. Authorities are currently investigating the cause of the outbreak, focusing on the food served as part of the MBG initiative. Reports indicate a scramble for toilet facilities as students experienced gastrointestinal distress. The incident raises concerns about the safety and quality control of the free meal program and its implementation. Further updates are expected as the investigation progresses and the affected individuals receive medical attention.