Randomized Trialmoderate evidence
Exercise-Induced Dehydration Limits the Effectiveness of Post-Exercise Whey Protein Supplementation in Healthy Young Men.
Nutrients·October 4, 2026·PMID 42884718
Why it mattersPost-exercise protein timing is a common recovery strategy, but hydration status during exercise may modulate the amino acid response. This study suggests that even modest dehydration (~2% body mass) could blunt the early rise in key amino acids like leucine, potentially affecting muscle protein synthesis signaling.
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