Making dietary changes can help reduce creatinine levels in some people, notes Mayo Clinic. However, an elevated creatinine level is often a sign of permanent kidney damage, in which case it may not be possible to reduce creatinine levels.
Although high creatinine is usually a sign of kidney damage, it can also be elevated due to dehydration, creatine supplements or a high-protein diet, explains Mayo Clinic. Getting treatment for dehydration, discontinuing creatine supplementation and reducing meat consumption may be enough to bring a temporary elevation of creatinine back to normal.
People with kidney disease must maintain careful control of their blood pressure levels, recommends Mayo Clinic. Keeping blood pressure under control and getting treatment for kidney disorders can prevent additional kidney damage. It may not be possible to reduce the amount of creatinine in the blood once the kidneys have been damaged, but it is possible to slow the progression of kidney disease and prevent creatinine levels from continuing to increase.
Creatinine is a waste product that is supposed to be filtered out of the blood by the kidneys, explains National Kidney and Urologic Diseases Information Clearinghouse. When the kidneys do not work properly, creatinine builds up in the blood, resulting in an elevated creatinine level.