Time-restricted eating as a gerotherapeutic strategy: Circadian nutrition and healthy longevity

Time-restricted eating as a gerotherapeutic strategy: Circadian nutrition and healthy longevity

Manuel Dote-Montero
1,2,*,#
,
Antonio Clavero-Jimeno
1,#
,
Rafael de Cabo
3
,
Idoia Labayen
4,5,6
,
Jonatan R. Ruiz
1,6,7,*
*Correspondence to: Manuel Dote-Montero, Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada 18016, Spain; Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Phoenix, AZ 85016, USA. E-mail: manueldote@ugr.es
Jonatan R. Ruiz, Department of Physical Education and Sports, Faculty of Sport Sciences, Sport and Health University Research Institute (iMUDS), University of Granada, Granada 18016, Spain; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid 28029, Spain; Instituto de Investigación Biosanitaria (ibs.GRANADA), Granada 18012, Spain. E-mail: ruizj@ugr.es
Geromedicine. 2026;2:202607. 10.70401/Geromedicine.2026.0027
Received: February 11, 2026Accepted: June 01, 2026Published: June 01, 2026
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This manuscript is made available in its unedited form to allow early access to the reported findings. Further editing will be completed before final publication. As such, the content may include errors, and standard legal disclaimers are applicable.

Abstract

Time-restricted eating (TRE), a form of intermittent fasting that limits food intake within a consistent daily window, has gained attention as a feasible strategy to promote metabolic health and align eating with circadian rhythms. Aging and obesity share overlapping pathophysiological mechanisms, including increased visceral adipose tissue (VAT), chronic inflammation, and circadian disruption, which accelerate cardiometabolic decline and multimorbidity. In this Perspective, we examine TRE within a geroscience framework, integrating evidence from human trials and preclinical models to evaluate its potential relevance for aging-related processes. We discuss how the timing of food intake influences VAT distribution and glucose regulation, with early TRE schedules showing particular promise for enhancing nocturnal glycemic control and reducing abdominal subcutaneous adipose tissue. Drawing on circadian biology and caloric restriction literature, we highlight mechanistic insights linking feeding-fasting cycles to autophagy, nutrient sensing, and longevity. We also consider emerging evidence of sex-specific responses to TRE, which may inform personalized approaches. However, most clinical studies remain short-term and focus on cardiometabolic risk markers rather than validated measures of biological aging or functional outcomes. We therefore emphasize the need to distinguish between demonstrated metabolic benefits and proposed gerotherapeutic effects, and argue that future trials should incorporate biomarkers of biological age, circadian robustness, and physiological resilience. TRE represents a low-cost, scalable, and behaviorally simple intervention that could complement existing strategies in geromedicine to extend healthspan and delay age-related decline.

Keywords

Time-restricted eating, visceral adipose tissue, circadian nutrition

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© The Author(s) 2026. This is an Open Access article licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Dote-Montero M, Clavero-Jimeno A, de Cabo R, Labayen I, Ruiz JR. Time-restricted eating as a gerotherapeutic strategy: Circadian nutrition and healthy longevity. Geromedicine. 2026;2:202607. https://doi.org/10.70401/Geromedicine.2026.0027

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