The Claim
Untrained young adults who consume approximately 1.3 g/kg/day of dietary protein and supplement with additional leucine-matched soy or whey protein, resulting in a total intake of ~1.6–1.8 g/kg/day, while engaging in resistance training three times per week for 12 weeks, experience significant improvements in lean body mass and strength, indicating that protein supplementation supports training adaptations in individuals whose baseline protein intake is below the 1.62 g/kg/day threshold for maximal benefit.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
If young adults who aren't used to working out eat a bit more protein—especially from whey or soy—and lift weights 3 times a week for 3 months, they’ll likely gain more muscle and get stronger, even if they weren’t eating enough protein to start with.
See the scientific wording
Untrained young adults consuming approximately 1.3 g/kg/day of dietary protein from food and supplementing with additional leucine-matched soy or whey protein (total ~1.6–1.8 g/kg/day) while performing resistance training 3 times per week for 12 weeks experience significant improvements in lean body mass and strength, suggesting that protein supplementation supports training adaptations in individuals below the 1.62 g/kg/day threshold for maximal benefit.
What the research says
1 studyThe study shows that adding protein supplements to a regular diet while lifting weights helps young, untrained people gain muscle and get stronger, whether they use soy or whey protein.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.