CREATINE FOR YOUR BRAIN? NOW THIS IS INTERESTING!
Wednesday, 14 October 2026 • THE LONG GAME
Q: Can creatine help thinking when you are short on sleep?
A: Possibly. A small 2026 randomised trial found that an experimental single dose was associated with less decline on selected cognitive tasks during sleep deprivation. It did not establish a treatment for brain fog.
HANG ON — ISN’T CREATINE A GYM THING?
That’s its reputation, but the brain uses the creatine energy system too. Scientists are interested in whether altering available cellular energy changes performance when the brain is under strain.
WHAT THE TRIAL TESTED
The April 2026 trial involved 29 healthy participants during a period of sleep deprivation. Researchers compared creatine with placebo while participants completed tasks involving reasoning, attention and processing. Some measures improved modestly, with results reaching around 12% on selected tasks; not every measure benefited.
HERE IS THE VERY IMPORTANT CATCH
It was a small controlled experiment in sleep-deprived healthy people. It did not test menopause brain fog, long COVID, ADHD or dementia. It also used an experimental dose of 0.2 g/kg in one setting; that is not a do-it-yourself recommendation.
WHAT ABOUT NORMAL SUPPLEMENTS?
Creatine monohydrate is widely sold and is better established in some exercise contexts. Supplement suitability varies, and kidney conditions, medications and gastrointestinal effects deserve consideration. Taking creatine does not replace sleep.
MY TAKEAWAY
I love that researchers are asking whether something usually associated with muscles might tell us more about brain energy. Interesting? Very. Ready to promise a cure for foggy thinking? Not even close.
AVAILABILITY, COST & LIMITATIONS
Study accessible online. Supplements widely sold at variable cost; no established cognitive-use dose from this study.