Type 1 diabetes

Efficacy and Safety of Time-Restricted Eating in Adults With Type 1 Diabetes: A Randomized Controlled Trial

Diabetes CarePublished Randomised controlled trial

Authors' conclusion

These findings suggest that TRE may be a safe approach for reducing HbA1c levels in T1D, although not more effective for weight loss compared with CR or a control group.

Study context

Population
Adults with T1D and overweight or obesityrandomized
Participants
32 adults
Comparison
8-h time-restricted eating (TRE) vs CR vs no-intervention control
Primary endpoint
Percent change in body weight
Follow-up
Month 6
Methodological detailsthree-group
  • Three-group

Primary result

As reported in the abstract

TRE vs Control · not significant, as printed

−2.19 %

95% CI −5.70 to −1.31

CR vs Control · not significant

−0.47 %

95% CI −4.72 to 3.78

TRE vs CR · not significant

−1.73 %

95% CI −5.37 to 1.92

Further findings

OutcomeEstimate
HbA1cTRE vs CR · significantly reduced−0.46 % (95% CI −0.80 to −0.12)

Total insulin dose and mean glucose

No significant differences in total insulin dose or mean glucose levels across groups

Safety

TRE did not increase the risk for DKA, severe hypoglycemia or severe hyperglycemia

Original publication

Efficacy and Safety of Time-Restricted Eating in Adults With Type 1 Diabetes: A Randomized Controlled Trial. Diabetes Care. Published 17 August 2026. doi:10.2337/dc26-1093

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