How does creatine levels affect kidneys?

Creatine itself is a naturally occurring compound in the body, primarily stored in muscles, and is involved in energy production. Supplementation can lead to elevated creatinine levels in the blood, which is a waste product filtered by the kidneys. While normal creatine supplementation is generally safe for healthy individuals, excessive intake may stress the kidneys, particularly in those with pre-existing kidney conditions. Regular monitoring of kidney function is advisable for those considering high doses of creatine.