Peer-reviewed study
Fasting outcomes still need protein and training context
The impact of intermittent fasting on body composition and cardiometabolic outcomes in overweight and obese adults: a systematic review and meta-analysis of randomized controlled trials
Source details
PubMed-linked study details.
- Authors
- Wang et al.
- Journal
- Nutrition Journal. 2025.
- Identifiers
- PMID 40731344 · DOI 10.1186/s12937-025-01178-6
Honest limits
What this study does not prove.
Fasting alone does not protect lean mass; resistance training and adequate protein still do most of that work.
Kris's practical takeaway
Here's what to do with it.
For body composition, fasting should be judged by the whole plan: calories, protein, lifting performance, sleep, hunger, and consistency.
Ways to use it
Safe ways to apply it.
The window is not the whole diet
Fasting needs a muscle plan too
Judge a diet by whether you can follow it
Related questions
Questions this research helps answer.
Related guides and studies
Keep learning about nutrition.
FAQ
Quick questions
What is the practical takeaway from this study?
For body composition, fasting should be judged by the whole plan: calories, protein, lifting performance, sleep, hunger, and consistency.
What does this study not prove?
Fasting alone does not protect lean mass; resistance training and adequate protein still do most of that work.
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