Body Recomposition: Simultaneous Muscle Gain and Fat Loss — A Review
Barakat C, Pearson J, Escalante G, Campbell B, De Souza EO
Evidence is still limited and needs further study
Summary
A narrative review synthesizing evidence that body recomposition—simultaneous gains in lean mass and losses in fat—is documented not only in beginners and individuals with obesity but also in trained individuals. The two main drivers are progressive resistance training and evidence-based nutrition including adequate protein.
Key findings
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Recomposition is documented not only in beginners and individuals with obesity but also in trained individuals across multiple reports
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The two main drivers are progressive resistance training and evidence-based nutrition including adequate protein
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The review also discusses moderators and limitations such as sleep, hormones, and the precision of body-composition measurement
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This is a narrative review focused on conceptual synthesis rather than primary experiments, so confidence is low
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