Research
Energy balance
There was no significant effect of whey or soy protein supplementation on lean body mass (LBM) or squat performance.
Practitioners should note that whey and soy protein may not significantly impact LBM or squat performance.
StrongRefutesmedium confidence
There was no significant effect of supplementing whey or soy protein intervention on LBM mean difference (MD) (1.13; 95% CI: -0.76, 3.02; p=0.22, I2 =55.7%), squat performance (MD 4.06; 95% CI:-5.46, 13.57; p=0.34, I2 =77.5%).
Why this rating
Based on the meta-analysis of randomized control trials.
Source
Impact of Whey and Soy Protein Supplementation on Resistance Training in Young Adults: A Systematic Literature Review and Meta-Analysis
Brandon Eric Davis · 2025
DOI 10.33915/etd.12848
Meta-analysis
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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