Research report / 2 September 2026

Creatine, the brain, and cognition.

A critical synthesis of human evidence on neuroenergetics, memory, attention, processing speed, sleep deprivation, aging, depression, neurological disease, dosing, and safety.

Bottom line

13 pages · 22 references

Evidence covered

Human evidence prioritized
Mechanism

Brain energy

The creatine-phosphocreatine system, cerebral uptake, magnetic resonance spectroscopy, and why target engagement is not proof of cognitive improvement.

Performance

Cognitive domains

Memory, reasoning, attention, executive function, processing speed, sleep deprivation, diet, age, and likely sources of heterogeneity.

Clinical evidence

Health and disease

Depression, Alzheimer disease, Parkinson disease, Huntington disease, ALS, traumatic brain injury, deficiency syndromes, kidney evidence, and safety.