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A high creatinine result: what it means
✓ Fact-checked against sourced references · Editorial standards
Creatinine is a waste product made by muscle and cleared by the kidneys. A high level can be an early warning, but it can also rise for harmless reasons.
What can raise it
- Reduced kidney function
- Dehydration
- Heavy exercise before the test
- Some medicines
Avoid the cleansesProducts marketed as kidney detoxes have no evidence of benefit, and some can harm the kidneys.
Frequently asked questions
Is a high creatinine always kidney disease?
No. Dehydration, exercise and diet can raise it temporarily.
Sources
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Educational only. This guide is general kidney-care information, not individual medical advice.