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Diabetes: Mediterranean nutrition, calorie reduction & movement reduce risk

Published on September 8, 2025

Share the article A combination of a Mediterranean diet, calorie reduction and moderate movement seems to reduce the risk of type 2 diabetes by almost a third and could thus make a decisive contribution to diabetes prevention. An international research team with the participation of Harvard T.H.Chan School of Public Health and the University of Valencia in Spain have been examined whether a reduced -calorie Mediterranean diet in combination with physical activity lowers diabetes incidence.The results can be found in the specialist journal "Annals of Internal Medicine". Help with the metabolic syndrome? The team examined a total of 4,746 participants aged 55 to 75 who suffered from metabolic syndrome and obesity or obesity, but had no cardiovascular diseases or diabetes at the beginning of the study. The participants were divided into two groups by the researchers.The intervention group combined Mediterranean nutrition with a reduction in daily calories by around 600 calories.In addition, the participants received professional support for losing weight and completed regular moderate movement (e.g. quickly walking or strength exercises). The remaining participants formed the control group.In contrast, people in this group adhered to a Mediterranean diet without further specifications.The participants of both groups were under medical observation over a period of six years. 31 percent reduced risk of diabetes The data evaluation showed that participants from the intervention group had a 31 percent reduced risk of illness in type 2 diabetes.At the same time, these participants decreased an average of 3.3 kilograms of weight and their waist size was reduced by 3.6 centimeters. Participants in the control group only decreased 0.6 kilograms in the same period and their abdominal circumference was reduced by 0.3 centimeters, reports the team. Advantageous for public health "In practice, the supplement of the Mediterranean diet has preserved about three out of 100 people from the development of diabetes-a clear, measurable benefit for public health," explains the study author Professor Miguel Martínez-González in a current press release. Read too: "With the highest level of evidence, our study shows that moderate, sustainable changes in nutrition and lifestyle could prevent millions of cases of this disease worldwide," adds co-author Dr.Frank Hu from Harvard T.H.Chan School of Public Health. If you want to reduce your risk of type 2 diabetes, you should not only rely on a Mediterranean diet, but also keep an eye on calorie intake and pay attention to sufficient exercise, although even moderate activities such as walking daily can already make a clear contribution.(as)