Creatine and Brain Health

You may remember learning that mitochondria are the powerhouse of the cell, creating energy currency in the form of ATP. An ingrained lesson from middle school biology that turns out to be foundational to how our cells function. Mitochondria and ATP production remain a major focus of research, examining how to support the organelle as well as optimize cellular energy and the pathways connected to it.

Creatine monohydrate is a supplement that has been studied for its influence on cellular energetics for decades. In fact, there are more research papers examining the effects of creatine than any other supplement. It's most widely known for its impact on muscle cells, but it has also been studied for its effects on cognitive health.

Strength training itself has been found to be a modifiable risk factor for cognitive decline dementia The Link Between Strength, Independence and Cognitive Health. Adding creatine supplementation to a strength training program may compound the benefits.

Creatine supplementation has been associated with benefits in short-duration, high-intensity efforts because it helps quickly replenish ATP once it's been depleted faster than the body can regenerate it through normal metabolism during burst activity. Creatine is also osmotically active, meaning it draws water into muscle cells, and this process may help stimulate protein synthesis pathways, contributing to greater lean mass and strength gains than resistance training alone.

Creatine's role in supporting muscle growth and ATP production is well established, but additional research suggests it may also offer benefits related to brain energy production, neurotransmitter activity, and oxidative protection.

Acetylcholine is a neurotransmitter involved in memory and attention. Early research suggests creatine supplementation may support neurotransmitter function and synthesis, potentially increasing acetylcholine levels in the brain. Preliminary studies have also proposed that creatine may act as a neuromodulator, supporting synaptic function and neuroplasticity.

There's also some evidence that creatine may play a protective role in the brain. It appears to help buffer oxidative stress, a known contributor to neuronal aging and neurodegeneration.

Creatine's support of muscle function during exercise may tie into cognitive benefits as well. Muscle contractions release signaling molecules called myokines, some of which may cross the blood-brain barrier blood-brain-barrier (BBB) and stimulate brain-derived neurotrophic factor (BDNF) Brain Derived Neurotrophic Factor and Alzheimer’s disease. Increased BDNF has been linked to neuron growth, greater synaptic activity, and improved memory.

Most studies examining creatine's effects on muscle use doses around 5 grams per day, while studies looking at cognitive outcomes have generally used higher doses, up to 20 grams per day. Creatine has a well-established safety profile, and early research suggests it may offer support for memory, executive function, and cognition though more research is needed to confirm these effects long-term. As always, consult your healthcare team before making any changes to your supplement regimen.


Source:
https://pmc.ncbi.nlm.nih.gov/articles/PMC12089086/
https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2024.1424972/full