NutriStack
Creatine is safe for long-term use, the receipts.
Decades of trials in healthy adults show no harm to kidney function. The ISSN position stand explicitly endorses long-term safety.
Strong evidence, per the methodology. Strongest 5 studies linked to PubMed.
Recommendation, contrary evidence, and dose are all on this page.
The studies
Strongest evidence, sourced.
Sorted by study tier (meta-analyses first, then RCTs, then reviews) and recency. Every entry links to PubMed by PMID.
At a glance
- Substances
- Creatine, Creatine Monohydrate
- Evidence tier
- Strong evidence
- Strongest studies surfaced
- 5 of 5 matching
- One-line verdict
- The kidney concern is a myth; the marker artifact is not.
- Last verified
- May 30, 2026
Top 5 studies
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Review
Creatine supplementation is generally well tolerated and not associated with clinically significant side effects in clinical trials.
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Review
Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? PMID 33557850
Scientific evidence does not support claims that creatine causes kidney damage, hair loss, or dehydration; it is safe for healthy individuals.
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Review
Short and long-term supplementation (up to 30 g/day for 5 years) is safe and well-tolerated; creatine can improve exercise performance and may have neuroprotective benefits.
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Meta-analysis
Risk of Adverse Outcomes in Females Taking Oral Creatine Monohydrate: A Systematic Review and Meta-Analysis PMID 32549301
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Meta-analysis
Effects of Creatine Supplementation on Renal Function: A Systematic Review and Meta-Analysis. PMID 31375416
Creatine supplementation did not significantly alter serum creatinine or plasma urea, indicating no adverse effects on renal function at studied doses and durations.
Contrary evidence
What pushes back.
Caveats, null findings, and methodological limits that hold the tier where it is.
What argues against the claim
- Serum creatinine rises slightly (a marker artifact, not actual kidney damage).
- Long-term safety data are concentrated in healthy adults; very limited data in pediatric and pregnant populations.
Recommendation
What the evidence supports.
What we recommend, with caveats
Healthy adults can take 3 to 5 g/day indefinitely. Anyone with pre-existing kidney disease should consult their physician.
Tier criteria are documented at /methodology/evidence-tiers. Sourcing standards at /methodology/interactions.
Stack interaction risks
Where these substances clash.
Documented pairings involving the substances behind this claim. Cautions and conflicts come first.
Pairs in the database
- Alpha-GPC + Creatine · Synergy
- Alpha-Lipoic Acid + Creatine · Synergy
- BCAAs + Creatine · Synergy
- Beta-Alanine + Creatine · Synergy
- Cordyceps + Creatine · Synergy
- Creatine + HMB · Synergy
Open the free interaction checker at /interactions to scan a full routine.
Goal hubs
Where this claim feeds in.
Goal-based hubs that index this claim alongside related supplements and protocols.
Related goal hubs
Before you go
One claim, opened up. NutriStack does this for every claim in the database.
The full library lives at /research. Every entry follows the same shape: the verdict, the studies, the contrary evidence, the recommendation, and the primary literature.