TAP reading note: Protein supplementation and resistance training-induced strength gains in young adults: a meta-analysis
Protein supplementation added a pooled 2.63 kg to bench-press gains (95% CI 0.77–4.49) and 7.40 kg to squat gains (2.15–12.66). Timing findings arose from comparisons across studies, not a randomized test of an optimal schedule.
Updated 2026-11-13 · Archived
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What the study found
Protein supplementation added a pooled 2.63 kg to bench-press gains (95% CI 0.77–4.49) and 7.40 kg to squat gains (2.15–12.66). Timing findings arose from comparisons across studies, not a randomized test of an optimal schedule.
Scope & limitations
23 randomized trials with 611 healthy adults younger than 45; most participants were men.
Heterogeneity was very high: I² 92.8% for bench press and 93.9% for squat. Baseline dietary intake was often not standardized or reported. Timing meta-regression was not conventionally significant (p=.073); shared controls and small subgroups limit precision. Authors’ GRADE labels do not remove these limitations or prove timing causality.
Population & sample
23 randomized trials with 611 healthy adults younger than 45; most participants were men.
Exposure or intervention
Protein supplementation plus resistance training versus training alone or with placebo; timing, protein source and dose varied.
Outcomes
Changes in bench-press and squat strength; not a direct comparison of recovery speed or equal-total meal schedules.
Time frame
Interventions 6–36 weeks; search through 1 April 2026; published 13 October 2026.
Research funding
Humanities and Social Sciences Foundation of Jiangxi Province’s universities, TY25202; Humanities and Social Sciences Research Project of Nanchang Normal College of Applied Technology, NYSRW2401.
Research conflicts of interest
Authors declared no commercial or financial relationships that could constitute a conflict.
Reading scope
PMC full text: eligibility, pooled and sensitivity results, meta-regression, GRADE discussion, limitations and declarations. No independent reanalysis of the underlying trials.
References
Publication record
TAP-RDN-0085 · v1.0 · English
Author: TAP Editorial Team ·
The Allostasis Project is founded and supported by Resilio.
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Captured: 2026-11-13T05:44:15.529Z
- v1.0 · 2026-11-13