Reppop Lyrra | Lyon is a brand that offers personalized support for children and young people who are overweight or obese. As a city-hospital network founded in 2004 as part of the National Nutrition Health Program, their main goal is to prevent obesity and provide tailored assistance to children in need. Supported by a non-profit association and funded by the Regional Health Agency, Reppop Lyrra has a team of healthcare professionals and coordinators who work together to establish the network, train other healthcare professionals in obesity prevention and management, coordinate children's healthcare journeys, and evaluate the provided support.

Various stakeholders and partners collaborate within the network, including healthcare professionals, hospitals, pediatric obesity centers, and sports facilities, to support children and their families. Reppop Lyrra is a member of the Association for the Management and Prevention of Obesity in Pediatrics and participates in national working groups. Originally launched in Lyon, the network has expanded to cover the Rhône, Ain, and Roannais regions