This editorial critically analyzes a research paper that investigates the relationship between the Mediterranean diet, glycemic load, and the incidence of type 2 diabetes. The study, based on the Greek cohort of the EPIC study, explores how dietary factors influence the risk of developing type 2 diabetes mellitus. The author discusses the methodology, which involved a cohort study using questionnaires and statistical analysis to assess food consumption and adherence to the Mediterranean diet. The editorial highlights key findings, such as the association between the Mediterranean diet and a lower risk of diabetes, and contrasts it with the high risk associated with a high glycemic load diet. The strengths of the research, including the focus on a general population and the beneficial effects of olive oil, are discussed. The limitations, such as the lack of inclusion of diabetic individuals and the inability to follow-up on participants' weight changes, are also explored. The editorial concludes by emphasizing the dietary characteristics of the Mediterranean diet, such as olive oil and vegetables, and their role in diabetes control, while also acknowledging the need for further research to fully understand the mechanisms involved.