From the Desk of a Doctor Newsletter
🧠 Brain Boost: Creatine Isn’t Just for Muscles — It Sharpens Memory and Focus
Creatine has long been associated with strength and muscle performance.
But a growing body of evidence suggests its benefits extend well beyond the gym — into the brain.
A recent systematic review and meta-analysis (PMID: 39070254) found that creatine supplementation can increase brain creatine levels and meaningfully improve several domains of cognitive performance in adults.
The Review:
Researchers analyzed randomized trials examining creatine’s effects on cognition in adults aged 18–60, including both younger and older populations.
To raise brain creatine levels, studies used either:
• High-dose short-term loading: ~20 g/day or 0.3 g/kg/day for ≥7 days
• Lower-dose long-term intake: ~4 g/day for several months
The Findings:
✅ Memory: Significant improvement
✅ Attention: Faster attention time and task completion
✅ Processing speed: Marked enhancement
These cognitive gains were observed alongside documented increases in total brain creatine, supporting a direct biological mechanism rather than a placebo effect.
Why this may work:
Creatine supports ATP regeneration in neurons, helping meet the brain’s high and fluctuating energy demands. This is particularly relevant for tasks involving attention, working memory, and rapid information processing — all of which are energy-intensive.
Why this matters:
Cognitive performance naturally declines with age and mental fatigue. Creatine is inexpensive, widely available, and among the most extensively studied supplements from a safety standpoint. While optimal dosing strategies for cognition are still being refined, the evidence suggests creatine may be a useful tool for brain health, not just physical performance.
Takeaway:
Creatine isn’t only muscle fuel. At appropriate doses, it may also help support memory, focus, and processing speed across adulthood.
— Dr. Myro Figura
|
About the Author
I’m Dr. Myro, a board-certified doctor and med school educator who somehow ended up with over 6 million followers watching my science videos on
YouTube,
Instagram,
TikTok,
and Facebook.
I’ve published 60+ scientific abstracts and even written a book, but this newsletter is my favorite project. Here I get to share the good stuff — simple, actionable health tips delivered twice a week. Happy to have you here.
|
Send this to a friend so they can subscribe