The Study
High-Protein Time-Restricted Eating Alongside Resistance Training Reduces Adipose Tissue While Preserving Fat-Free Mass in Women With Overweight: A Randomized Controlled Trial.
This study is like a fair test where four groups of women tried different ways of eating and exercising, and the researchers measured what happened to their bodies. Because they randomly assigned who got which plan, we can guess that the differences in fat loss were probably caused by the plans themselves — but we can't be 100% sure because not everyone was blind to what they were doing.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
When you're trying to lose weight, eating more protein and lifting weights helps you burn belly fat and keep your muscles, but only eating at certain times of day doesn't help much by itself.
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 554 / 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.
- 1Losing 147 cm³ of belly fat is like removing a grapefruit-sized amount of dangerous internal fat, which lowers diabetes and heart disease risk — and keeping muscle helps you stay strong and avoid regaining fat later.
- 2Women who ate 1.6g of protein per kg of body weight and lifted weights lost 147 cm³ more belly fat than those who ate normal protein.
- 3Their muscle mass went up by 1–2.4 kg.
- 4Eating only within a 10-hour window didn't help more than normal eating.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
International journal of sport nutrition and exercise metabolism
Year
2025
Authors
Fatemeh Bagherpour, H. Arazi, Hamid Rajabi, Bill I. Campbell
Related Content
Claims (6)
In young women with overweight, plasma ghrelin levels stay the same after 8 weeks of eating fewer calories, doing resistance training, and following either time-restricted eating or a high-protein diet.
In young women with overweight, an 8-week program that combines eating within a 10-hour window, consuming 1.6 grams of protein per kilogram of body weight daily, and doing supervised strength training reduces visceral fat by about 147 cm³ more than a diet with regular protein intake, while maintaining or increasing muscle mass.
Young women with overweight who consume 1.6 grams of protein per kilogram of body weight per day while dieting and lifting weights maintain or gain muscle mass, while those who consume 0.8 grams per kilogram do not.
Among young women with overweight who are reducing calories and doing strength training, eating within a 10-hour window without extra protein does not lead to more loss of belly fat or better preservation of muscle compared to eating at regular times.
In young women with overweight, consuming 1.6 grams of protein per kilogram of body weight per day during calorie restriction and resistance training lowers leptin levels. Adding time-restricted eating does not lower leptin levels any further.
When people reduce their calorie intake, adding resistance training leads to more fat loss than reducing calories alone.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.