Creatinine
Creatinine is a waste product from normal muscle activity, filtered out by the kidneys. Because it's made at a steady rate, its blood level is the standard way to check kidney function, and it's used to calculate eGFR.
Your reading
This app uses 0.6–1.3 mg/dL. Muscular people, men, and anyone who ate a lot of meat or trained hard before the test often sit near the top or slightly above without any kidney problem. Dehydration raises it too. Low creatinine usually just reflects lower muscle mass.
What may help
- —Being well hydrated and skipping hard exercise for a day before the test
- —Avoiding a large meat meal the night before, and creatine supplements for a few days, if you want a clean baseline
- —Looking at eGFR and the trend over time, which say more than one reading
When to talk to a doctor
If creatinine is above the range on a repeat test, keeps rising over time, or your eGFR is below 60.
Common questions
What is Creatinine?
Creatinine is a waste product from normal muscle activity, filtered out by the kidneys. Because it's made at a steady rate, its blood level is the standard way to check kidney function, and it's used to calculate eGFR.
What is a normal Creatinine level?
Daygo uses 0.6–1.3 mg/dL as the reference range. This app uses 0.6–1.3 mg/dL. Muscular people, men, and anyone who ate a lot of meat or trained hard before the test often sit near the top or slightly above without any kidney problem. Dehydration raises it too. Low creatinine usually just reflects lower muscle mass.
How can I improve my Creatinine?
Being well hydrated and skipping hard exercise for a day before the test. Avoiding a large meat meal the night before, and creatine supplements for a few days, if you want a clean baseline. Looking at eGFR and the trend over time, which say more than one reading.
When should I see a doctor about Creatinine?
If creatinine is above the range on a repeat test, keeps rising over time, or your eGFR is below 60.
Source: MedlinePlus (NIH): Basic Metabolic Panel. Reference ranges are standard adult intervals — your own lab may report a different range for your age, sex, or method. This isn't medical advice; always go by the range on your actual results and talk to a clinician about anything that concerns you.