Tier 2 — strong
Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show?
J Int Soc Sports Nutr
2021
18(1):13
Bibliography
- PubMed
- PMID 33557850
- PubMed Central
- PMC7871530
- Funding
- Funding: not applicable.
- Competing interests
- Multiple authors disclosed creatine-related industry research, donations, sponsorship, advisory-board roles, consulting, speaking support or ISSN leadership; the full paper contains the author-by-author declarations.
Study snapshot
| Design | Evidence-based narrative review |
|---|---|
| Model | Human |
| Sample | Review of common creatine safety and efficacy questions |
| Intervention | Creatine monohydrate evidence |
| Duration | Not applicable |
| Endpoints | Water retention; Steroid misconception; Kidney safety; Hair loss; Dehydration; Cramping; Youth; Fat mass |
What the study showed, in plain terms
Key findings
What this study can and cannot tell us
Citation network
Articles citing this research paper
Biohack Blueprint analyses that reference this study in their evidence base.
- How Long Does Creatine Take to Work? Loading, Saturation and Results TimelineHow long creatine takes to work with and without loading, what muscle saturation means, when performance may change and why visible muscle...Read analysis
- Creatine and Caffeine: Can You Take Them Together? Coffee, Pre-Workout and EvidenceCan you take creatine with caffeine or coffee? See what the original 1996 trial, a later randomized coffee study and two systematic...Read analysis
- Creatine for Teens: What We Know About Safety, Sports and SupervisionCreatine for teens requires more caution than adult supplementation. See what pediatric reviews show, where evidence is thin and when professional guidance...Read analysis
- Creatine Powder vs Capsules: Dose, Convenience, Absorption and CostCreatine powder vs capsules compared: same monohydrate physiology, serving size, cost, loading practicality, travel and how to choose the better format for...Read analysis
- Creatine Gummies vs Powder: Dose, Stability, Sugar and Value ComparedCreatine gummies vs powder: compare actual dose, cost, stability documentation, convenience, sugar and how to spot an underdosed gummy.Read analysis
- Creapure Creatine: Purity, German Manufacturing and What It Actually ChangesCreapure explained: 99.9% purity claims, German manufacturing, batch testing, QS codes and why quality traceability is different from superior efficacy.Read analysis
- Micronized Creatine Monohydrate: Smaller Particles, Same Creatine?Micronized creatine explained: what micronization changes, what it does not change, mixing and stomach claims, and whether it is worth paying more.Read analysis
- Best Creatine Monohydrate: Evidence-Led Buying Guide for 2026How to choose the best creatine monohydrate by dose, purity, testing, form and evidence—plus what claims do not justify a premium.Read analysis
- Creatine Weight Gain: Water Retention, Lean Mass and What the Scale MeansWhy creatine can increase body weight, how much is water versus lean mass, what loading changes, and whether creatine increases body fat.Read analysis
- Does Creatine Cause Hair Loss? DHT, Baldness and the 2025 Human TrialCreatine and hair loss: where the DHT concern came from, what the first randomized trial measuring actual hair outcomes found, and what...Read analysis
- Creatine and Kidney Health: Creatinine, eGFR and What Safety Studies ShowCreatine and kidneys explained: why creatinine can rise, how eGFR can be misleading, what direct filtration studies show and who should seek...Read analysis
- Creatine Side Effects: Kidney Tests, Weight Gain, Hair Loss and SafetyCreatine side effects separated from myths: water weight, stomach upset, kidney laboratory interpretation, hair loss, dehydration and who should seek medical advice.Read analysis
Editorial review
Reviewed by the Biohack Blueprint research team
Last verified

