Creatine and Creatinine are 2 different things.
Creatine is a useful energy compound your body stores in muscle to help generate quick power. It can also be taken as a supplement.
Creatinine is a waste product created when creatine is broken down. Your kidneys filter it out, so it’s used as a marker of kidney function in blood tests
You can measure Cyctatin C for kidney function instead of measuring Creatinine.
Thanks for the explanation but I was under the impression that once I start using Creatine which is what I meant and will fix my post above(i plan on taking 4-5g daily) my eGFR number will decrease and may not be a good indicator of kidneys health. Or not necessarily? I just happen to be very sensitive about my kidney’s health more so than that of other organs perhaps and I don’t even have a good answer why (lol). So, if I knew for sure that creatine is bad for kidneys’ I’m actually fine with not doing creatine at all even though its benefits are always noted by longevity docs.
If you start taking Creatine your eGFR number will decrease. Creatine supplementation will trigger false alarms. It will convert into Creatinine in your body, making Creatinine number higher which will affect eGFR calculation. I have reduced kidney function due to transplant so I don’t want to overload my kidney with additional Creatinine to process. Kidneys will have to work harder to excrete additional Creatinine. For healthy kidneys it’s OK. So your decision depends on overall health of your kidneys.
Age: 51
eGFR: 89
Rapamycin 4mg a week with GFJ