Research
Cellular
Skeletal muscle protein turnover rates are approximately 1%–2% per day, with muscle protein breakdown (MPB) exceeding muscle protein synthesis (MPS) in the fasted state, and MPS exceeding MPB in response to protein-containing meals.
Understanding protein turnover can help in designing nutrition strategies for muscle maintenance and growth.
StrongSupportsmedium confidence
Skeletal muscle protein turnover rates are ∼1%–2%/d and exist in dynamic, usually balanced, equilibrium between muscle protein breakdown (MPB) and muscle protein synthesis (MPS). For example, in the fasted state, MPB>MPS, whereas in response to ingestion of protein-containing meals, MPS>MPB.
Why this rating
The claim is based on established physiological principles.
Source
A to Z of nutritional supplements: dietary supplements, sports nutrition foods and ergogenic aids for health and performance—Part 32
Stuart M. Phillips et al. · British Journal of Sports Medicine · 2012
DOI 10.1136/bjsports-2012-091100
reviewCited 3×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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