The Claim
A single 0.2 g/kg dose of creatine does not significantly reduce subjective fatigue during sleep deprivation, suggesting that any cognitive benefits of creatine are not mediated by reduced sleepiness but are likely due to direct neuroenergetic support.
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.
Taking a single dose of creatine before sleep deprivation does not make people feel less tired, which suggests that if creatine improves mental performance, it does so by directly supporting brain energy use, not by making people feel more rested.
See the scientific wording
A single 0.2 g/kg creatine dose does not significantly reduce subjective fatigue during sleep deprivation, indicating its cognitive benefits are not mediated by reduced sleepiness but likely by direct neuroenergetic support.
What the research says
1 studyStudy: Single-Dose Creatine Reduces Sleep Deprivation-Induced Deterioration in Cognitive Performance
This study found that taking a small amount of creatine helped people think better after staying up all night, even though they still felt tired. That means creatine probably helps the brain work better directly, not by making people feel less sleepy.
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.