The Claim
In resistance-trained males, the increase in lean mass following 4 weeks of supplementation with glutathione and L-citrulline is positively correlated with gains in muscle strength, but no such correlation is observed in groups receiving placebo or L-citrulline-malate.
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.
In men who train with weights, those who take glutathione and L-citrulline for four weeks show a consistent relationship between gains in lean mass and gains in muscle strength, but this relationship does not occur in those who take a placebo or L-citrulline-malate.
See the scientific wording
In resistance-trained males, the increase in lean mass following 4 weeks of supplementation with glutathione and L-citrulline is positively correlated with gains in muscle strength, but this correlation is not observed in placebo or L-citrulline-malate groups.
Glutathione and L-citrulline together increase nitric oxide in the muscle, which triggers a chain reaction that boosts protein building and improves how well nerves activate muscle fibers, causing muscle growth and strength to rise together.
What the research says
1 studyIn trained men, those who took glutathione and L-citrulline together not only gained more muscle but also got stronger — and these two changes went hand in hand. But if they took just L-citrulline-malate or a placebo, gaining muscle didn’t mean they got stronger.
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.