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Catalyst

whey proteinFinding

Whey protein increases muscle protein fractional synthetic rate

raisesModerate evidenceFinding

01 · The sentence it was drawn from

“The findings demonstrated that the combination of exercise and whey protein supplementation resulted in a significant increase in myofibrillar FSR compared to exercise alone (Hedge’s g of 1.87; 95% CI: 0.99 to 2.76; p < 0.001).”
Quoted verbatim from Whey Protein Supplementation Combined with Exercise on Muscle Protein Synthesis and the AKT/mTOR Pathway in Healthy Adults: A Systematic Review and Meta-Analysis.
This finding among the 2 findings on its endpoint

whey protein

Muscle protein fractional synthetic rate

raises

Effect as reported

1.87standardised mean difference

CI 0.99 to 2.76

Who
Healthy non-sedentary adults (371 participants across the 21 included trials, 338 men and 33 women, most with resistance-training experience), myofibrillar FSR measured 3 to 5 h after a single exercise bout; 10 trials pooled; the exercise bout was given to both arms
Dose studied
10 g to 60 g of whey protein per session, taken around a single exercise bout

Moderate evidencePMID 40871607 · 2025

02 · The study

Study
meta-analysis
Duration
not reported

Evidence, by strength

  • strong
  • moderatethis finding
  • limited
  • very limited
  • insufficient

03 · The paper

Nutrients
What else it reported1 finding · 0 compounds · 1 endpoint

04 · To cite this finding

This address does not change

https://catalystproject.ai/e/01M6Y1DP936PDX7SRS05C12C8G