Research
Cellular
Supplemental protein hydrolysate had a positive effect on lower body strength with a standardized mean difference (SMD) of 0.43 (95% CI: 0.16–0.69, P = 0.001).
Practitioners may consider recommending protein hydrolysate supplementation to enhance lower body strength in resistance-trained individuals.
StrongSupportsmedium confidence
Supplemental protein hydrolysate had a positive effect on the lower (n = 7, SMD = 0.43, 95% CI: 0.16–0.69, P = 0.001) and upper (n = 5, SMD = 0.17, 95% CI: −0.06–0.41, P = 0.145) body strength of resistance-trained individuals compared with placebo.
Why this rating
Based on the meta-analysis of multiple studies.
Source
A systematic review and meta-analysis: Effects of protein hydrolysate supplementation on fat-free mass and strength in resistance-trained individuals
Meng Shen et al. · Critical Reviews in Food Science and Nutrition · 2021
DOI 10.1080/10408398.2021.1956877
Meta-analysisCited 3×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
Related findings · Cellular
- Athletes aiming to reduce fat mass and preserve FFM should consume protein intakes in the range of ∼1.8-2.7 g kg(-1) d(-1).Strong
- A minimum daily protein intake of ≥1.6 g/kg is necessary to observe significant improvements in muscle mass from whey protein supplementation.Strong
- Most athletes ideally need 1.2 to 2.0 grams/kg of body weight/day of protein, preferably split across 3-4 meals.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →