1. Study involved 4,746 older patients aged 55-75.
2. Energy-reduced Mediterranean diet combined with physical activity lowered diabetes incidence.
3. Significant weight loss (3.3 kg) observed in intervention group.
4. Follow-up duration was six years.
5. 31% lower relative risk for diabetes in intervention group.
6. Intensive support included dietitian visits and counseling.

Source: Annals of Internal Medicine