The Study
Early time-restricted eating with energy restriction has a better effect on body fat mass, diastolic blood pressure, metabolic age and fasting glucose compared to late time-restricted eating with energy restriction and/or energy restriction alone: A 3-month randomized clinical trial.
This study compared three different ways of eating for people trying to lose weight. It found that eating earlier in the day helped a little more with fat loss and blood sugar than eating later or just dieting — but not by much. It doesn't prove that eating early causes these changes, just that people who did it tended to have better results.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Three groups ate the same number of calories but at different times: one ate only during the morning/early afternoon, one ate later in the day, and one ate normally. All lost weight, but the early eaters lost more fat and had better blood sugar and blood pressure.
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.
- 1Yes — even without losing more total weight, early eaters saw meaningful improvements in fat loss and key health markers linked to diabetes and heart disease.
- 2Early eaters lost 5.0 kg, had 1.2% less body fat, 0.35 mmol/L lower fasting glucose, 3 years younger metabolic age, and 4 mmHg lower diastolic blood pressure than others.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Clinical nutrition
Year
2025
Authors
T. Črešnovar, B. Habe, N. Mohorko, S. Kenig, Z. Jenko Pražnikar, A. Petelin
Related Content
Claims (4)
When people eat the same number of calories, consuming them earlier in the day leads to better metabolic markers than consuming them later in the day.
When people eat all their daily calories earlier in the day instead of later, and consume the same total number of calories, their fasting blood sugar and diastolic blood pressure are lower.
Caloric restriction in individuals with excess body fat improves metabolic health markers including waist circumference, serum cholesterol, fasting glucose, and blood pressure.
Early time-restricted eating, with constant total caloric intake, improves metabolic health markers compared to late-day eating.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.