Creatine and the brain: what does the research say?
Most people think muscle when they hear creatine. But the brain is one of the body's most energy-hungry organs — and it uses creatine the same way muscles do: as a fast energy buffer. So what does the research actually say?
What the studies show
A widely cited systematic review pooled six randomised controlled trials (281 participants). Its conclusion was cautious but positive:
Oral creatine administration may improve short-term memory and intelligence/reasoning of healthy individuals but its effect on other cognitive domains remains unclear.
In short: creatine may improve short-term memory and reasoning in healthy people. For other areas — attention, processing speed, reaction time — the picture is currently mixed.
Who seems to benefit most?
- Vegetarians and vegans. They start with lower brain creatine stores and respond most clearly.
- Older adults. Several studies point to benefit in this group.
- Young, healthy adults showed no clear effect on cognitive tasks in these studies.
Be honest about the dose
One important caveat: the cognition studies often used 5–20 g per day — more than the 3 grams documented for physical performance. The effect on the brain is promising, but not fully mapped, and the "right" dose for cognition isn't settled.
What we take from it
Creatine is safe and inexpensive, and the brain research is one of the most exciting areas right now. We follow it closely — and describe it as it is: well documented for training, promising for the mind, but not a miracle.
Sources
- Avgerinos, Spyrou, Bougioukas & Kapogiannis (2018). Effects of creatine supplementation on cognitive function of healthy individuals: A systematic review of randomized controlled trials. Experimental Gerontology.