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Creatine is everywhere. What does science actually say?
Creatine, long used by athletes to support muscle growth, is now marketed to a much wider audience with claims that it can improve memory and mood, reduce the effects of lost sleep and help people with Alzheimer’s disease. The article examines whether research supports these broader promises or whether marketing has moved ahead of the evidence.
It reports that US creatine sales exceeded half a billion dollars in 2025. The video reviews research on creatine’s effects on muscles and the brain and includes insights from exercise scientist Nick Tiller and University of Kansas associate professor Matthew Taylor, whose team studied creatine in people with Alzheimer’s.
In short
- Creatine is marketed for benefits beyond muscle growth.
- US sales topped half a billion dollars in 2025.
- The video examines evidence for claims about brain health.
Steelman: both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
Supporters argue that creatine is well established for helping athletes build muscle, and that its role in the body’s energy systems gives researchers a sound reason to investigate possible benefits for memory, mood and sleep loss. Early findings, including research involving people with Alzheimer’s, may justify further study and cautious interest, provided claims are matched to the strength of the evidence.
The case against
Sceptics argue that plausible mechanisms and early studies do not establish meaningful benefits for the wider public or for people with Alzheimer’s, and that marketing can make tentative findings sound proven. They favour distinguishing creatine’s established athletic uses from broader health claims until larger, rigorous studies show whether those benefits are real and for whom.
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