Published April 10, 2026 11:51AM
If you’re spending long days hiking, engaged in tough mountaineering, or trying to live off the grid in remote areas, your body and mind can be stretched to their breaking points. Fatigue sets in, you start losing sleep, and both your physical and mental performance begin to take a hit. In such demanding circumstances, staying alert is essential.
Could a supplement like creatine monohydrate, which is accessible, affordable, and easily absorbed by the body, help maintain your mental sharpness when you’re running low on energy? The answer might actually be yes. Here’s what you should consider.
How Creatine Might Enhance Mental Clarity and Alertness
While creatine is mostly known for boosting muscle strength and aiding recovery, there’s some indication that it could enhance brain function, particularly under stress and fatigue. Its primary role is to regenerate adenosine triphosphate (ATP), a molecule crucial for energy supply and storage in the body.
Roberto Cannataro, a chemical engineer and sports nutritionist, notes, “ATP is how energy gets into cells, and creatine is the quickest way to restore it; in the first few seconds of high-intensity activity, creatine provides the necessary energy.” This is particularly significant for the brain, which processes information rapidly. Cannataro adds that “neuronal connections happen in less than a tenth of a second, so having a fast energy source like creatine can help the brain respond more efficiently under pressure.”
So, when your energy levels are running low due to lack of sleep, physical strain, or environmental stress, creatine could offer the mental boost needed for complex tasks like decision-making, navigation, or problem-solving in tough outdoor situations.
Can Creatine Boost Brain Function Under Extreme Conditions?
A review published in 2025 about the benefits of creatine for individuals over 55 found improvements in memory, processing speed, and attention. Additionally, a 2024 study suggested that creatine could help relieve fatigue. In critical situations, this could be a significant advantage for those needing to stay focused. Another recent small study indicated that creatine supplementation might enhance mental performance and diminish sleepiness, even in stressful conditions. Researchers concluded that creatine shows promise for maintaining cognitive function during sleep deprivation.
Despite the encouraging outcomes, the exact effects of creatine on the brain are still somewhat unclear. A 2023 study focused on cognition examined 123 participants who took five grams of creatine daily for six weeks to see its impact on memory and reasoning. The lead author, Julia Fabien Sandkühler, expressed uncertainty about how beneficial creatine could be for brain function in everyday scenarios, particularly under extreme conditions. While there were some minor enhancements in working memory, it’s unclear if these benefits carry over to more demanding cognitive tasks, especially in high-stress environments.
Creatine Might Be Beneficial for the Brain During Climbing Expeditions or Hikes
Andrew Murray, a professor at the University of Cambridge, has looked into how creatine influences energy metabolism in high-altitude settings.
“Creatine assists in replenishing ATP in cells,” he states, “but findings on its effects on cognitive function have been mixed. Some studies show slight benefits, while others have found no impact.” He notes that at high altitudes, where oxygen is limited, it’s still uncertain whether creatine provides significant cognitive advantages.
However, Cannataro has a more positive outlook on creatine’s capabilities in extreme settings. “At altitude, where oxygen levels are lower, creatine—along with anaerobic glycolysis—could be a vital energy source.” This suggests that in situations where oxygen is scarce, such as at high altitudes, creatine may be able to support both physical and mental performance.
What Does This Mean for You?
Although more studies are needed to fully grasp creatine’s cognitive benefits, its role in ATP generation shows promise for sustaining mental clarity in demanding environments. Cannataro believes creatine may also play an important part in fighting cognitive decline as we age.
As for dosage, a safe range is typically between three and five grams of creatine per day. However, people with kidney issues should consult a doctor before starting, as some evidence suggests it may impact kidney function. Additionally, new users might experience some initial water retention as their bodies adapt, which could last about a week.
If you’re dealing with physical exhaustion, sleep deprivation, or mental fatigue, creatine’s ability to rapidly replenish ATP could provide the crucial edge you need.
