Randomized Trialhigh evidence
Effect of a protein intervention during resistance training with varying training intensities on muscle outcomes in frail community-dwelling older adults: a randomized controlled trial.
The journal of nutrition, health & aging·June 1, 2026·PMID 41931963
Why it mattersFrail older adults are at high risk for sarcopenia and functional decline. This study suggests that simply adding protein to resistance training may not universally boost muscle outcomes, but it highlights the potential importance of screening for low protein intake to identify individuals who might benefit most from targeted supplementation.
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