The Mediterranean diet is an eating pattern characterising a lifestyle and culture reported to contribute to better health and quality of life. (UNESCO, 2010). Strong theoretical and conceptual frameworks, integrating constructs from the different research traditions and disciplines are used. (Douglas et al., 1997) The objective is to assign to homogeneous groups in the Milan metropolitan population, food education programmes and communication campaigns. The aim of this interdisciplinary research is to examine the applicability of population segmentation based on the adherence to the Mediterranean diet, food, lifestyle and the BMI score. Using a cross-sectional survey. the subjects, primary school-aged children (6-11 years) and their parents living in the metropolitan municipality of Milan are studied. The instrument used is a self-administrated questionnaire completed by the parents (N=1900), constructed from the consumer psychological and epidemiological literature review (Sahingoz et al., 2011) and consists of 40 items researching the following areas: socio-demographic, food purchase and consumption habits and values, physical activity and anthropometric measures, lifestyle habits and other familial factors such as nationality. A cluster analysis is conducted according to a Mediterranean diet score defined a priori on the basis of the literature, considering specific principles sustaining the traditional healthy Mediterranean dietary patterns, although high adherence to the Mediterranean diet and lifestyle score, educational and informing activities on nutrition are needed.