1 23 Mediterranean Journal of Nutrition and Metabolism Official Journal of the Italian Association for Dietetics and Clinical Nutrition (ADI) a member of the Italian Federation of Nutritional Societies (FeSIN) ISSN 1973-798X Mediterr J Nutr Metab DOI 10.1007/s12349-013-0123-5 Nutrition claims: a potentially important tool for the endorsement of Greek Mediterranean traditional foods Effie Vasilopoulou, Vardis Dilis & Antonia Trichopoulou