Researchers propose an earlier target for diabetes prevention

Type 2 diabetes prevention often begins after blood-sugar regulation has already worsened. An international group of researchers argues for acting throughout life and making remission from prediabetes—the restoration of normal blood glucose—a clear, measurable prevention target.

Their Nature Medicine framework draws together evidence from long-running prevention studies. Previous trials have shown that lifestyle programmes and metformin can reduce progression to diabetes, while newer analyses suggest returning to normal glucose regulation is associated with better long-term outcomes.

The approach encourages health services to match support to different biological, behavioural and environmental risks rather than treating prediabetes as one uniform condition. For the UK, it strengthens the case for accessible prevention that starts before diabetes develops and accounts for pregnancy, childhood, ageing and deprivation.

This is a research framework, not a new clinical trial or proof that one programme will work for everyone. Precision prevention could also become expensive or unequal if advanced testing is required. The authors say interventions must remain scalable, affordable and adaptable across socioeconomic settings.