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Time Restricted Eating: A Valuable Alternative to Calorie Restriction for Addressing Obesity?
Maria Eugenia Parrotta1, Luca Colangeli1,2, Valeria Scipione1
1Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy.
Current Obesity Reports
|February 3, 2025
Summary
Time-restricted eating (TRE) may help regulate appetite and offer benefits for obesity by influencing cellular functions. More research is needed to confirm its clinical effectiveness beyond weight loss.
Area of Science:
- Metabolic health and circadian biology
- Nutritional science and obesity research
Background:
- Obesity is a growing epidemic requiring effective interventions.
- Circadian misalignment is common in obesity.
- Time-restricted eating (TRE) aims to realign circadian rhythms through timed food intake.
Purpose of the Study:
- To review the molecular effects of TRE.
- To explore TRE's role in appetite regulation.
- To discuss TRE's potential clinical benefits for obesity.
Main Methods:
- Review of preclinical and clinical studies on TRE.
- Analysis of molecular mechanisms, including cellular functions and hormone modulation.
- Evaluation of clinical trial data for weight loss and other outcomes in obesity and type 2 diabetes.
Main Results:
- TRE influences cellular functions like senescence, mitochondrial activity, and autophagy.
- TRE may modulate appetite and satiety hormones, but mechanisms require further elucidation.
- Clinical trials show TRE can be effective for weight loss in obesity and type 2 diabetes, but broader cardiovascular benefits are less certain.
Conclusions:
- TRE shows promise as an alternative to caloric restriction for obesity treatment.
- Variability in clinical trial designs complicates definitive conclusions.
- Further research is necessary to clarify TRE's mechanisms and long-term clinical impact.
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