Creatine as a supplement for the brain
When we think of creatine, we usually think of the gym, muscle building, and improving physical performance. However, the latest scientific research opens up a completely new dimension of this fascinating supplement’s action. It turns out that creatine can have a significant impact on our cognitive functions, memory, concentration, and even the brain aging process.
In an era of aging societies and growing health awareness, more and more people are seeking natural ways to support mental performance. Could creatine be the answer to these needs? Let’s look at current scientific research and discover how this well-known sports supplement can affect our cognitive abilities.
Mechanism of creatine action in the brain
Neuroprotective properties
Research indicates that creatine may act as a neuroprotector, protecting brain cells from damage caused by oxidative stress and energy deficiency. This mechanism may be particularly important in the context of brain aging and neurodegenerative diseases.
Brain energy system
The brain is one of the most energy-demanding organs in our body, consuming about 20% of the body's total energy. Like muscles, neurons require a constant supply of energy in the form of ATP (adenosine triphosphate) to function properly. This is where creatine comes in.
Creatine in the brain works through the phosphocreatine system, which serves as a rapid energy reservoir. When neurons need immediate energy, phosphocreatine can quickly transfer a phosphate group to ADP (adenosine diphosphate), regenerating ATP. This process is especially important during intense mental work when energy demand sharply increases.
The impact of creatine on cognitive functions – latest research
Systematic review of studies from 2024
The latest systematic review and meta-analysis published in 2024 showed that creatine monohydrate supplementation can have beneficial effects on cognitive functions in adults, especially in memory, attention span, and information processing speed. The analysis included 16 randomized controlled trials with 492 participants aged 20.8 to 76.4 years.
Specific areas of improvement
Scientific studies indicate a positive effect of creatine in the following areas:
Memory and learning
- Higher levels of creatine in the brain are associated with better neuropsychological performance, and supplementation can improve both short-term and long-term memory.
Concentration and attention
- People taking creatine may maintain attention on tasks longer, get distracted less, and return to work faster after breaks. This is especially important for those performing tasks requiring focus for long hours.
Information processing speed
- Creatine may accelerate thinking processes, leading to faster decision-making and problem-solving.
Creatine and brain aging
Natural aging processes
One of the factors contributing to cognitive decline during aging is the deterioration of energy metabolism, in which creatine is involved. With age, creatine levels in the brain naturally decrease, which may contribute to cognitive decline.
Potential in neurodegenerative diseases
The latest research from 2025 brings promising results regarding the use of creatine in neurodegenerative diseases:
Alzheimer’s disease
- A pilot study conducted at the University of Kansas, the first to examine creatine supplementation in people with dementia, showed moderate improvements in cognitive functions. This groundbreaking discovery opens new possibilities in combating this progressive condition.
Long-term supplementation
- Long-term creatine supplementation improves cognitive impairments and structural plasticity of the hippocampus in aging models by increasing CK-BB activity in the brain, suggesting that regular creatine intake may slow down brain aging processes.
Creatine and mental health - a breakthrough in treating depression and anxiety
New research horizons
One of the most fascinating areas of current creatine research is its potential impact on mental health. While traditionally associated with sports and physical performance, recent discoveries open entirely new therapeutic possibilities in psychiatry.
Mechanism of action in mood disorders
Depression and other mood disorders are often associated with disturbances in brain energy metabolism. Nerve cells in people with depression may have problems producing and using energy, which translates into symptoms such as fatigue, concentration difficulties, and low mood. This is where creatine can play a key role.
Creatine affects mental health through several mechanisms:
- Improvement of brain bioenergetics - providing a stable energy source for neurons
- Support of mitochondrial functions - increasing the efficiency of the "cellular power plants"
- Modulation of neurotransmitter systems - influence on serotonin, dopamine, and other compounds responsible for mood
- Neuroprotective action - protection of brain cells from damage
Breakthrough studies from 2024
The latest research brings revolutionary discoveries in this area. A pilot study published in November 2024 tested for the first time the effectiveness of creatine as an adjunct to cognitive-behavioral therapy in people with depression. The results are very promising—the study showed that creatine can be a safe and useful complement to standard therapy.
Equally fascinating are the results of a population study conducted in South Korea on a group of over 5,000 people. The analysis showed a clear link between low dietary creatine intake and increased severity of depression symptoms as well as a higher risk of suicidal thoughts. This finding suggests that creatine may play a much broader role in mental health than previously thought.
Practical aspects of supplementation
Dosage for cognitive functions
Most studies on creatine’s impact on cognitive functions used a standard dose of 3-5 grams of creatine monohydrate daily. Some research protocols started with a loading phase (20 grams daily for 5-7 days), followed by a maintenance dose.
Who can benefit the most?
Research suggests that creatine may be especially beneficial for:
- Older adults with natural cognitive decline
- Vegetarians and vegans, who have lower creatine levels in their bodies
- Individuals performing intense mental work
- People experiencing chronic stress or sleep deprivation
Safety and side effects
Creatine is one of the most well-researched supplements worldwide. Long-term studies confirm its safety when used as recommended. The only common side effect may be a slight weight gain caused by water retention in cells.
Limitations and future research directions
Need for more research
- Despite promising results, larger, robust clinical trials are needed to further confirm these effects. Current studies, although positive, often involve relatively small participant groups and short observation periods.
Individual differences
- Not everyone responds to creatine supplementation in the same way. Factors such as genetics, diet, age, and health status can influence the supplement's effectiveness.
Summary
Creatine, primarily known as a sports supplement, turns out to have much broader applications than initially thought. The latest scientific research provides increasing evidence that it can support cognitive functions, improve memory and concentration, and even slow down brain aging processes.
Although further research is needed to fully understand the potential of creatine in the context of brain health, current evidence is promising enough to consider its use not only in sports but also as support for mental performance. As always, before starting any supplementation, it is advisable to consult a doctor, especially if you have health issues or are taking other medications.
Creatine may be the key to maintaining a sharp mind for many years – sometimes the best solutions are simpler than they might seem.
Bibliography and sources
- Avgerinos, K. I., Spyrou, N., Bougioukas, K. I., & Kapogiannis, D. (2018). Effects of creatine supplementation on cognitive function of healthy individuals: A systematic review of randomized controlled trials. Experimental Gerontology, 108, 166-173.
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- Dolan, E., Gualano, B., & Rawson, E. S. (2019). Beyond muscle: the effects of creatine supplementation on brain creatine, cognitive processing, and traumatic brain injury. European Journal of Sport Science, 19(1), 1-14.
- Gualano, B., Roschel, H., Lancha Jr, A. H., Brightbill, C. E., & Rawson, E. S. (2012). In sickness and in health: the widespread application of creatine supplementation. Amino Acids, 43(2), 519-529.
- Prokopidis, K., Giannos, P., Triantafyllidis, K. K., Kechagias, K. S., Forbes, S. C., & Candow, D. G. (2024). The effects of creatine supplementation on cognitive function in adults: a systematic review and meta-analysis. Frontiers in Nutrition, 11, 1424972.
- Smith, R. N., Agharkar, A. S., Gonzales, E. B., et al. (2025). Creatine monohydrate pilot in Alzheimer's: Feasibility, brain creatine, and cognition. Alzheimer's & Dementia: Translational Research & Clinical Interventions, 11(2), e12470.
- Zhu, C., Wang, S., Wang, B., Du, F., Hu, C., Li, H., & Feng, T. (2025). Long‐Term Creatine Supplementation Improves Cognitive and Hippocampal Structural Plasticity Impairments in a D‐Gal‐Induced Aging Model via Increasing CK‐BB Activity in the Brain. Food Science & Nutrition, 13(1), e4767.
- Avgerinos, K. I., Spyrou, N., Mantzoros, C. S., & Dalamaga, M. (2018). Effects of creatine supplementation on cognitive function of healthy individuals: A systematic review of randomized controlled trials. Experimental Gerontology, 108, 166-173.
- Rawson, E. S., & Venezia, A. C. (2011). Use of creatine in the elderly and evidence for effects on cognitive function in young and old. Amino Acids, 40(5), 1349-1362.