Since May 4, 2026, students in France have been able to enjoy a one-euro meal in all university dining halls. This initiative aims to boost students' purchasing power, as many face financial difficulties. A 2023 survey by the National Observatory of Student Life revealed that just over half (52%) of students feel they have enough food to eat, while 13% report not having enough to eat, 22% say they often skip meals, and 9% rely on food assistance programs. To address these challenges, a participatory research study was conducted in Lyon, focusing on improving student nutrition in a sustainable way. Researchers identified three key areas: financial accessibility, meaning affordable food prices; physical accessibility, meaning easy access to food sources; and cognitive accessibility, referring to the knowledge and information needed to make informed food choices. Two main approaches were tested in the study. One involved providing students with a monthly budget of 50 euros in local currency to spend at local food networks. The second included awareness and support activities, such as visits to organic farms, cooking workshops, and discussions on sustainable farming practices. After six months of testing, the study found that combining financial support with educational activities led to improved eating habits over time. However, awareness activities alone had limited success. Additionally, events held outside campus and in the late afternoon were found to be less effective in encouraging student participation. The research underscores the importance of pairing financial aid with educational efforts to create lasting improvements in students' dietary habits. This approach not only helps meet immediate needs but also supports long-term sustainability in food choices and access.