期刊
ADVANCES IN NUTRITION
卷 13, 期 3, 页码 792-820出版社
ELSEVIER SCIENCE INC
DOI: 10.1093/advances/nmac014
关键词
calorie restriction; time-restricted feeding; hunger; satiety; ghrelin; energy balance
Time-restricted feeding and continuous calorie restriction have similar effects on gut peptides involved in satiety, but the former may reduce hunger. Current research is still lacking, and more evidence and studies are needed to draw definitive conclusions.
Calorie restriction (CR) is a common approach to inducing negative energy balance. Recently, time-restricted feeding (TRF), which involves consuming food within specific time windows during a 24-h day, has become popular owing to its relative ease of practice and potential to aid in achieving and maintaining a negative energy balance. TRF can be implemented intentionally with CR, or TRF might induce CR simply because of the time restriction. This review focuses on summarizing our current knowledge on how TRF and continuous CR affect gut peptides that influence satiety. Based on peer-reviewed studies, in response to CR there is an increase in the orexigenic hormone ghrelin and a reduction in fasting leptin and insulin. There is likely a reduction in glucagon-like peptide-1 (GLP-1), peptide YY (PYY), and cholecystokinin (CCK), albeit the evidence for this is weak. After TRF, unlike CR, fasting ghrelin decreased in some TRF studies, whereas it showed no change in several others. Further, a reduction in fasting leptin, insulin, and GLP-1 has been observed. In conclusion, when other determinants of food intake are held equal, the peripheral satiety systems appear to be somewhat similarly affected by CR and TRF with regard to leptin, insulin, and GLP-1. But unlike CR, TRF did not appear to robustly increase ghrelin, suggesting different influences on appetite with a potential decrease of hunger after TRF when compared with CR. However, there are several established and novel gut peptides that have not been measured within the context of CR and TRF, and studies that have evaluated effects of TRF are often short-term, with nonuniform study designs and highly varying temporal eating patterns. More evidence and studies addressing these aspects are needed to draw definitive conclusions. Statement of Significance: An in-depth review of current literature on the effects of time-restricted feeding and calorie restriction on the endocrine system involved in satiety. Along with the companion article, our reviews weave together information on both central and peripheral systems of satiety, which tend to be examined separately, in hopes to guide future research in this area.
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