Time‑restricted eating versus dietetic guidance on glycaemic outcomes in adults at risk of type 2 diabetes: a non‑inferiority randomised clinical trial – published online 06/06/2026

Evelyn B. Parr, Rasha Charrouf, Amy T. Hutchison, Steve A. Flint, Xiao Tong Teong, Andrew D. Vincent, Ana Paula Bravo-Garcia, Zoe Siviour, Gary A. Wittert, Leah Brennan, Brooke L. Devlin, John A. Hawley, Leonie K. Heilbronn

Time‑restricted eating has emerged as a simple, low‑cost dietary approach that focuses on when food is consumed rather than what foods are eaten. In this issue, Parr, Charrouf and Hutchison et al (https://doi.org/10.1007/s00125-026-06762-x) report findings from a large randomised clinical trial comparing time‑restricted eating with individualised dietetic guidance in adults at risk of type 2 diabetes. Over 4 months, time restricted eating was not different to dietitian‑led care on the primary outcome, HbA_1c. Both interventions led to modest weight loss and improvements in blood pressure, while time‑restricted eating was associated with higher adherence, suggesting greater acceptability in real‑world settings. The authors conclude that these findings support time‑restricted eating as a pragmatic short‑term alternative for individuals with limited access to dietetic services or those seeking a simpler approach to lifestyle change, and highlight the need for strategies that balance accessibility, sustainability and long‑term metabolic benefit.

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