An intensive diet and exercise program resulting in weight loss does not reduce heart attack and stroke in people with longstanding type 2 diabetes. The results come from a study supported by the National Institutes of Health.

The study tested whether a lifestyle intervention resulting in weight loss would reduce rates of heart disease, stroke, and cardiovascular-related deaths in overweight and obese people with type 2 diabetes, a group at increased risk for these conditions.

Researchers worked with more than 5,000 people. Half underwent a “lifestyle intervention,” and the other half were in a general program of diabetes support and education.

Although the diet and exercise group did not see a reduction in cardiovascular events, they did experience health benefits. Among these were decreased sleep apnea, better physical mobility, and a reduced need for diabetes medications.