Creatine Monohydrate
Also known as: Creatine
One of the best-researched supplements of all — reliably effective for strength and muscle building, with solid safety data over decades.
Substance family
Vitamins, minerals, amino acids and enzymes. The recurring pattern: correcting an actual deficiency helps, supplementing beyond a normal level generally does not.
Effects on
Which outcomes this substance acts on — descriptive, not a recommendation.
Strain profile
Where this substance is most likely to hit — a rough orientation, individually dependent on dose, duration and predisposition.
Dosing & protocols by goal
Rough orientation ranges as reported in harm-reduction literature — not an individual treatment plan. Doses are individual and open-ended; frequency depends on the ester or half-life.
Maintenance (standard)
BaselineDose
3–5 g / day
Frequency
1× / day, ongoing
Cycle length
Unlimited
Timing of intake is uncritical; consistency is what counts.
Loading phase (optional)
OptionalDose
20 g / day
Frequency
4× 5 g / day
Cycle length
5–7 days, then maintenance dose
Speeds up muscle saturation but is not strictly necessary.
Side effect & countermeasure
Typical problems and what you can do to reduce harm — at a glance. Does not replace medical monitoring.
Problem
Water retention in the muscle (weight on the scale)
Countermeasure
No cause for concern — it is not fat, but cell hydration. Drink enough.
Problem
Creatinine value slightly elevated in lab tests
Countermeasure
Take into account when interpreting kidney values; with a genuine pre-existing kidney condition, clarify medically first.
Overview
Creatine monohydrate is one of the most thoroughly researched supplements in the sports context. Over decades, studies consistently show positive effects on strength performance, training volume and muscle mass — while at the same time having a very good safety profile.
Mechanism of Action
Creatine increases intramuscular phosphocreatine stores, which serve as a rapidly available energy reserve for the ATP-PCr system — the primary energy system during short, intense efforts such as strength training. In addition, effects on cell hydration and protein-synthesis signaling pathways are discussed.
Typical Context
Classically used as a base supplement in strength and hypertrophy training. Beyond the training context, there is growing research interest in cognitive effects as well as a possible supportive role in neurodegenerative questions — but here the evidence is far more preliminary than in the sports context.
Side Effects & Risks
- Very good safety profile, repeatedly confirmed in studies even with long-term use
- Initial water retention in the muscle (no fat gain, but weight increase on the scale)
- Occasionally mild gastrointestinal complaints, usually dose-dependent and avoidable by splitting the daily dose
- With severely impaired kidney function, prior medical consultation is advisable (with healthy kidneys there is no proven risk)
Blood Work & Monitoring
For healthy people, no routine monitoring is necessary. Since creatine can raise the creatinine value (a kidney-function marker) in lab tests without an actual kidney dysfunction being present, this should be taken into account when interpreting kidney values — especially in combination with other substances where genuine kidney values are relevant.
Harm-Reduction Notes
- Classic dosing scheme: 3–5 g daily, ongoing; a "loading phase" is effective but not strictly necessary
- Ensure adequate fluid intake
- With pre-existing kidney conditions, clarify medically before starting
Where to get it
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Legal status by region
Regulation differs considerably between jurisdictions and changes over time. This is a rough orientation, not legal advice — check the rules that apply where you are.
| Region | Regulatory status |
|---|---|
| United States | Dietary supplementFreely available; not subject to pre-market approval. |
| EU / UK | Food supplementFreely available, subject to labelling and claims rules. |
| Most other jurisdictions | Freely available |
| Competitive sport | Not prohibitedContamination of supplements remains a practical risk for tested athletes. |