In brief: Creatine is a naturally occurring compound stored mainly as phosphocreatine in muscle. Creatine monohydrate can improve performance in short, intense exercise and support training adaptation.[1]
Where is benefit best established?
| Goal | Interpretation |
|---|---|
| Strength training | Well supported |
| Repeated sprints | Well supported |
| Pure endurance performance | Less clear |
| General “brain boosting” | Interesting research area, not a universal claim |
Why can body weight rise?
Creatine increases water content inside muscle cells, so body weight may rise before any additional muscle mass is gained.
How safe is creatine?
ISSN considers creatine monohydrate well studied and generally safe in healthy people at studied intakes.[1] Kidney disease or unexplained laboratory abnormalities warrant medical review.
FAQ
Do you need a loading phase?
No. It only speeds saturation.
Is creatine monohydrate outdated?
No. It remains the best-studied form.
Does creatine automatically build muscle?
No. Training and nutrition remain essential.
Does it damage kidneys?
There is no convincing evidence of this in healthy people using studied amounts; kidney disease requires extra caution.
Conclusion
Creatine monohydrate is a well-studied supplement for selected sports goals. It does not replace training or diet and should be individualised in people with medical conditions.
