Early blood-sugar control in type 2 diabetes cuts death risk by 20%

A new study by the Universities of Gothenburg and Oxford has highlighted the importance of early blood-sugar control in type 2 diabetes. Researchers found that managing glucose levels right after diagnosis can significantly improve long-term health outcomes. The findings underscore how delays in treatment may reduce its effectiveness over time. The study identified what experts call the 'glycaemic legacy effect'. This means that patients who maintain good blood-sugar control soon after being diagnosed with type 2 diabetes face fewer complications later in life. Those who wait a decade before improving their glucose management see only a 3% reduction in their risk of death.

Early intervention appears to be key. When patients follow recommended blood-sugar targets—such as an HbA1c level of 52 mmol/mol or lower—from the start, their risk of death drops by about 20% after 10 to 15 years. The research also stressed that prolonged exposure to high blood-sugar levels increases the likelihood of heart attacks and other serious health issues. Experts now emphasise the need for swift detection and treatment. By acting early, patients can avoid long-term damage and improve their chances of a healthier future.

The findings confirm that timing matters in diabetes care. Patients who control their blood-sugar levels immediately after diagnosis gain the most protection against future complications. This reinforces the importance of early screening and strict adherence to treatment guidelines.