The Study
Single-Dose Creatine Reduces Sleep Deprivation-Induced Deterioration in Cognitive Performance
This study showed that when people stay up all night, taking creatine helped them think a little better on some tasks—like solving puzzles or reacting quickly. But it didn't make them smarter overall, just a bit less tired-looking on these tests.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
When people stay up all night, their brains get sluggish — but a single pill of creatine helped some people think faster and clearer during that time.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 561 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — a 12% boost in thinking speed during sleep deprivation could mean better decision-making in emergencies, night shifts, or all-nighters.
- 2Creatine improved thinking speed by up to 12% in tasks like logic and word processing.
- 3Women and vegetarians saw bigger benefits.
- 4It didn't make people feel less tired.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Nutrients
Year
2026
Authors
A. Gordji-Nejad, Andreas Matusch, L. Hengstler, S. Beer, T. Kroll, Sabine Klein, D. Elmenhorst, A. Bauer, A. Drzezga
Related Content
Claims (8)
Taking creatine supplements may enhance thinking and memory in older people or those who are sleep-deprived or have cognitive difficulties, but it does not noticeably change thinking skills in healthy young adults.
After taking a single dose of creatine while sleep-deprived, females show better performance on tasks involving logic, attention, and language speed compared to males, suggesting biological differences in how the brain uses creatine for energy.
During sleep deprivation, taking more creatine (0.35 g/kg) leads to slightly better cognitive performance than taking less (0.2 g/kg), but the benefit does not increase beyond a certain dose, suggesting the brain reaches a limit in how much creatine it can use under these conditions.
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.
Taking 0.2 grams of creatine monohydrate per kilogram of body weight as a single oral dose can reduce the decline in cognitive functions such as logical reasoning, numerical processing, language speed, and attention during 21 hours without sleep in healthy young adults.
Vegetarians who are sleep-deprived show better performance in tasks requiring quick thinking and reaction time after taking a single dose of creatine, likely because their usual diet leads to lower natural creatine levels.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.