{"title":"Time-restricted eating and its metabolic benefits in obesity and insulin resistance","authors":"Najd Al Sarayreh, Hayder Al-Domi, Aseel Jawamis","doi":"10.1016/j.clnesp.2025.08.033","DOIUrl":null,"url":null,"abstract":"<div><h3>Background & aims</h3><div>This study aimed to critically review the potential effects of time-restricted eating (TRE) on lipemic and glycemic control, as well as certain inflammatory biomarkers, including interleukin-1 beta (IL-1β), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6) levels, in individuals with obesity and insulin resistance.</div></div><div><h3>Methods</h3><div>A critical review of the relevant published articles (56 original articles) from 2007 to 2025 was carried out using several search engines, including PubMed, Scopus, Cochrane, and Google Scholar. The following keywords were used: TRE, insulin resistance, inflammatory biomarkers, and blood glucose.</div></div><div><h3>Results</h3><div>TRE shows potential in improving glycemic and lipemic control in obese individuals with insulin resistance, although its effect on inflammatory markers such as IL-1β, TNF-α, and IL-6 remains inconsistent. Mechanistic studies suggest that activation of adenosine monophosphate-activated protein kinase (AMPK), suppression of mammalian target of rapamycin (mTOR), and ketosis help enhance glucose metabolism, promote autophagy, boost mitochondrial function, and lower triglyceride and low-density lipoprotein (LDL) levels. Despite these benefits, human trial results are mixed, with inconsistencies mainly caused by small sample sizes, varying TRE protocols, and differences in study design and populations characteristics.</div></div><div><h3>Conclusion</h3><div>The effect of TRE is contradictory regarding body weight, insulin sensitivity, lipid profile, and pro-inflammatory status. Furthermore, a well-designed, randomized controlled trial with a long study duration is warranted to investigate the effectiveness of TRE, as it would provide critical insights into the sustainability and broader health impact of this dietary approach.</div></div>","PeriodicalId":10352,"journal":{"name":"Clinical nutrition ESPEN","volume":"69 ","pages":"Pages 703-710"},"PeriodicalIF":2.6000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical nutrition ESPEN","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405457725029195","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"NUTRITION & DIETETICS","Score":null,"Total":0}
引用次数: 0
Abstract
Background & aims
This study aimed to critically review the potential effects of time-restricted eating (TRE) on lipemic and glycemic control, as well as certain inflammatory biomarkers, including interleukin-1 beta (IL-1β), tumor necrosis factor-alpha (TNF-α), and interleukin-6 (IL-6) levels, in individuals with obesity and insulin resistance.
Methods
A critical review of the relevant published articles (56 original articles) from 2007 to 2025 was carried out using several search engines, including PubMed, Scopus, Cochrane, and Google Scholar. The following keywords were used: TRE, insulin resistance, inflammatory biomarkers, and blood glucose.
Results
TRE shows potential in improving glycemic and lipemic control in obese individuals with insulin resistance, although its effect on inflammatory markers such as IL-1β, TNF-α, and IL-6 remains inconsistent. Mechanistic studies suggest that activation of adenosine monophosphate-activated protein kinase (AMPK), suppression of mammalian target of rapamycin (mTOR), and ketosis help enhance glucose metabolism, promote autophagy, boost mitochondrial function, and lower triglyceride and low-density lipoprotein (LDL) levels. Despite these benefits, human trial results are mixed, with inconsistencies mainly caused by small sample sizes, varying TRE protocols, and differences in study design and populations characteristics.
Conclusion
The effect of TRE is contradictory regarding body weight, insulin sensitivity, lipid profile, and pro-inflammatory status. Furthermore, a well-designed, randomized controlled trial with a long study duration is warranted to investigate the effectiveness of TRE, as it would provide critical insights into the sustainability and broader health impact of this dietary approach.
期刊介绍:
Clinical Nutrition ESPEN is an electronic-only journal and is an official publication of the European Society for Clinical Nutrition and Metabolism (ESPEN). Nutrition and nutritional care have gained wide clinical and scientific interest during the past decades. The increasing knowledge of metabolic disturbances and nutritional assessment in chronic and acute diseases has stimulated rapid advances in design, development and clinical application of nutritional support. The aims of ESPEN are to encourage the rapid diffusion of knowledge and its application in the field of clinical nutrition and metabolism. Published bimonthly, Clinical Nutrition ESPEN focuses on publishing articles on the relationship between nutrition and disease in the setting of basic science and clinical practice. Clinical Nutrition ESPEN is available to all members of ESPEN and to all subscribers of Clinical Nutrition.