The Claim

Long-term creatine monohydrate supplementation at doses up to 30 g/day for a duration of up to 5 years is not associated with clinically significant adverse effects on renal, hepatic, or hematological function in healthy individuals and clinical populations, including athletes and patients with neurodegenerative diseases.

Source: International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
1score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Taking creatine monohydrate every day for up to five years, even at high doses, doesn’t seem to harm your kidneys, liver, or blood in healthy people or those with brain-related diseases like Parkinson’s or ALS.

See the scientific wording

Long-term creatine monohydrate supplementation (up to 30 g/day for 5 years) is not associated with clinically significant adverse effects on renal, hepatic, or hematological function in healthy individuals or clinical populations, including athletes and patients with neurodegenerative diseases.

What the research says

1 study
  1. Study: International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine

    This study says taking creatine for up to 5 years, even at high doses, doesn’t harm the kidneys, liver, or blood in healthy people or those with diseases like Parkinson’s — which is exactly what the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.