Time-restricted eating is gaining attention as a feasible dietary approach to improve glycaemia in people at risk of type 2 diabetes. These findings were presented at EASD 2025, highlighting its potential as an alternative to standard dietetic guidance.

In a 12-month parallel-group randomized trial, 247 adults at risk of type 2 diabetes (AUSDRISK ≥15, BMI 25–45 kg/m², aged 35–70 years) were randomized to either a 9-hour time-restricted eating window or individualized dietetic guidance. Primary outcomes focused on change in glycated hemoglobin at 4 months, with secondary outcomes including 12-month HbA1c, fasting insulin and glucose, and nocturnal glucose assessed by continuous glucose monitoring.

Time-restricted eating was non-inferior to individualized dietetic guidance at 4 months, with a mean HbA1c difference of −0.02% (95% CI −0.07 to 0.03%; P=0.41). No significant differences were observed in secondary outcomes at 4 or 12 months. Adverse events were generally mild and transient, including irritability and constipation.

These results suggest that time-restricted eating offers a practical and effective alternative dietary approach for glycemic management, particularly for individuals with limited access to dietetic services.