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.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

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

Narrative Review

2017

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.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

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

Score: 1

DOI: 10.1186/s12970-017-0173-z

Similar Assertions

Taking creatine powder for about a week—first a lot, then a little—can boost the amount of creatine in your muscles by over 13%, which helps your muscles store more energy.

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Taking creatine for a week like this doesn’t make you weigh more or gain more muscle in young, healthy men and women.

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Taking creatine for a week may lower protein breakdown in young men by about 7.5%, but it doesn’t seem to have the same effect in young women.

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Taking creatine supplements at the normal dose won’t hurt your kidneys if you’re healthy — lots of studies over many years have shown no consistent sign of kidney problems.

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77%