Doctors have warned for years that type 2 diabetes is spreading quickly across the world. Millions of people now live with the disease, and many more are expected to develop it in the future.
Diabetes can quietly damage the body for years before serious problems appear. It increases the risk of heart disease, kidney failure, blindness, and nerve damage. Because of this, scientists have been searching for realistic ways to prevent the disease before it begins.
A major study from Spain now offers hopeful news. Researchers discovered that a Mediterranean-style lifestyle program helped lower the risk of type 2 diabetes by 31 percent.
The study was published in Annals of Internal Medicine and was part of the huge PREDIMED-Plus project led by the University of Navarra together with researchers from many hospitals and universities across Spain.
The Mediterranean diet has already become famous around the world. It is based on eating foods commonly found in countries near the Mediterranean Sea. Meals often include vegetables, fruits, beans, nuts, olive oil, fish, and whole grains.
Red meat and highly processed foods are eaten less often. Earlier studies had already shown that this style of eating could protect the heart and help people live longer.
But the new research wanted to test whether the benefits could become even stronger if the diet was combined with physical activity, modest calorie reduction, and regular support from health professionals.
The study followed 4,746 adults aged between 55 and 75. None of them had diabetes at the beginning, but they were considered high risk because they had overweight or obesity and metabolic syndrome.
Metabolic syndrome is a condition where several health problems happen together, including high blood pressure, extra belly fat, unhealthy cholesterol levels, and raised blood sugar.
Participants were split into two groups. One group simply followed a traditional Mediterranean diet. The second group followed a more active lifestyle program. They reduced daily calories slightly, exercised regularly, and received coaching and support to help them stay on track.
After six years, the difference between the groups became clear. People following the more intensive lifestyle program developed diabetes much less often. Researchers estimated that the program prevented about three diabetes cases for every 100 participants.
The findings matter because diabetes rates continue rising worldwide. Modern lifestyles often include too much sitting, less movement, and greater dependence on processed foods.
Many people spend long hours at desks or in cars and have little time for exercise. At the same time, cheap processed foods high in sugar, salt, and unhealthy fats are widely available.
Even with those challenges, the study provides a hopeful message. It shows that diabetes prevention may not require perfection. Small daily choices can add up over time. Walking more, eating healthier foods, losing a modest amount of weight, and receiving support can together make a powerful difference.
Overall, the study gives strong evidence that a Mediterranean-style lifestyle program can protect people at high risk of diabetes. The trial lasted six years and involved thousands of participants, making the results more trustworthy than short-term studies.
One limitation is that the participants were older adults living in Spain, so results may vary somewhat in different populations. Still, the findings strongly support the idea that moderate lifestyle improvements can create major long-term health benefits.
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Source: University of Navarra.
