The Study
Time-Restricted Eating in Adults With Metabolic Syndrome
This study is like a fair test where two groups of people with prediabetes tried different eating habits—one group ate only during an 8–10 hour window, and the other ate however they normally did. After 3 months, the first group had slightly better blood sugar numbers. But we can't say it's the only reason why—maybe they ate less or slept better. So it suggests TRE might help, but doesn't prove it for sure.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
People with prediabetes ate only during an 8–10 hour window each day, without eating less food, and their blood sugar got a little better.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 568 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Even a tiny drop in HbA1c like this can lower the risk of developing full-blown diabetes over time, especially when combined with other healthy habits.
- 2HbA1c dropped by 0.10%, body weight fell by 3.3%, trunk fat dropped by 3.9%, and blood sugar swings (glucose variability) decreased — all without cutting calories.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Annals of Internal Medicine
Year
2024
Authors
Emily N. C. Manoogian, Michael J. Wilkinson, Monica O'Neal, Kyla L. Laing, Justina Nguyen, David Van, A. Rosander, Aryana Pazargadi, Nikko R Gutierrez, J. Fleischer, Shahrokh Golshan, S. Panda, P. Taub
Related Content
Claims (6)
Eating all meals within a daily time window improves metabolic function and gut health, even when total calories consumed remain unchanged.
In adults with metabolic syndrome and prediabetes, eating within an 8- to 10-hour window each day for 3 months, along with standard medical care and nutritional counseling, lowers HbA1c by 0.10% compared to standard care alone, and this change is linked to improved glycemic stability.
In adults with metabolic syndrome, a 3-month personalized eating schedule that limits daily food intake to certain hours lowers fluctuations in blood glucose levels throughout the day and night, even when body weight and total calories consumed do not change.
Among adults with metabolic syndrome, eating within a restricted daily window for three months lowers LDL cholesterol slightly compared to usual care, but does not consistently change other blood fats, blood pressure, or inflammation markers.
In adults with metabolic syndrome, using a digital app to guide eating within an 8–10 hour window for three months leads to daily compliance in more than 85% of logged meals, showing that this approach can be reliably implemented using apps.
Adults with metabolic syndrome who eat only during a restricted daily window for three months lose 3.3% of their body weight and 3.9% of trunk fat, with most of the weight loss coming from fat rather than muscle, compared to those receiving standard care.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.