Crap raises creatinine levels, I avoid it.
You are correct deadz, creatine does raise creatinine levels. But this usually is not a problem.
Creatine is a popular energy-boosting supplement and natural amino acid derivative, whereas creatinine is the waste product that is naturally formed when your body uses creatine. Using creatine does not harm the kidneys but can cause misleading serum creatinine tests which measure kidney function. If you use creatine be sure to mention it to your physician prior to having your labs done. Kidneys are the body's natural filtration system. Similiar to the liver's function which is also your body’s primary natural filtration and detoxification system.