New research suggests that a period of careful eating and regular physical activity could prevent diabetes for up to a decade.
US researchers followed up nearly 3,000 overweight people who had taken part in a three-year diabetes prevention programme. They had initially been divided into three groups, one undertaking a diet and exercise programme, the second taking metformin and the third a placebo.
The report noted it was the dieters who reaped the most benefit. All three groups were given access to ongoing lifestyle coaching once the initial three-year trial had ended.