There is a close relationship between people's health and well-being, but it is not always easy or a priority to follow a balanced diet. The reasons why someone chooses one type or another of diet can be conditioned by geographical or socio-economic access barriers, as well as by a lack of knowledge or difficulty in making a change of habits.

Grupo Dia has set itself the goal of working to help reduce the food gap and disseminate eating habits to reduce obesity and malnutrition. To better understand these problems, and in partnership with the University of Zaragoza and other academic partners, Dia has promoted an intervention study in Spain focused on vulnerable groups.