The other day, one of our members approached me in the gym and asked what I knew about creatine. “I’ve been taking one 5-gram scoop each morning for about a month,” David told me. “My balance feels better, and I’ve got more physical and mental energy – with no side effects.”
David’s experience aligns to some degree with what researchers have been uncovering about creatine, not just for muscles (which we’ve known about since the early nineties), but for the brain.
What Creatine Does
Creatine is a compound that is naturally produced in the liver, kidneys and pancreas. Its primary job is to support the phosphocreatine system, an energy-buffering mechanism that helps rapidly regenerate adenosine triphosphate (ATP), the molecule that powers nearly every cellular process. When the body is under sudden metabolic demand – whether lifting weights or deep in concentration – creatine steps in to help restore ATP almost instantly.
Well-Established Muscle Benefits
Most people know creatine for its athletic effects – decades of research show that supplementation:
* Increases strength and power
* Improves performance during high-intensity exercise
* Delays muscular fatigue
These outcomes are among the most thoroughly documented in sports nutrition.
The Brain Uses an Enormous Amount of Energy
What’s becoming increasingly interesting is creatine’s impact on the central nervous system. Although the brain represents only about 2% of body weight, it consumes roughly 20% of the body’s total energy. Neurons rely heavily on ATP to:
* Produce and package neurotransmitters
* Transmit signals across synapses
* Reset and maintain electrical gradients
* Support memory, attention and executive function
As we age, the brain becomes less efficient at generating the energy it needs. Reduced ATP availability has been linked with cognitive decline and neurodegenerative processes.
How Creatine Might Support Brain Health
Research suggests creatine supplementation may:
1. Increase phosphocreatine stores in the brain, thus improving energy availability
2. Reduce mental fatigue, particularly during demanding cognitive tasks
3. Improve short-term memory and reasoning, especially in older adults or those who are sleep-deprived
4. Provide neuroprotection by stabilising the production of ATP and reducing cell and tissue damage
These findings are promising, but the science is still evolving. Not all studies show benefits, and results may depend on factors such as age, diet, and baseline creatine levels.
Should You Try It?
Creatine is one of the most researched supplements on the market, and it is generally considered safe for most people when taken in appropriate doses (commonly 3–5 grams per day).
While the evidence for cognitive benefits isn’t conclusive, it’s heading in a positive direction, and experiences like David’s are somewhat consistent with the emerging science.
As always, it’s wise to check with your GP before starting any new supplement, especially in light of potential interactions with regular medications.
