That trial, carried out by the US-based Diabetes Prevention Program Research Group, had shown a diet aimed at achieving 7% weight loss, combined with half an hour of exercise five days a week, reduced the risk of developing Type 2 diabetes by 58% compared with the placebo group.
The group on metformin, a drug which has been used to treat the condition since the 1950s, saw their risk decline by nearly a third.
In the seven years after the trial ended, both the drug and placebo groups - now also eating more carefully and exercising - saw the rate of diabetes fall.
But the most significant drop was among those who had started out on a diet and exercise regime - their risk was over a third lower than the placebo group.
Dealing with diabetes is a pain. A little exercise and a better diet may be worth it.
The usual cautions here. This is science, so it might even be true.