I have had a number of blood tests over the lasts 12 months and my Glomerular filtration rate a cause of concern for my GP.
It varies a little but is always below 90, which suggests some level of reduced kidney function, and most recently came in at 61 which is 1 point off chronic kidney disease.
This is troubling but i do not know a lot about this and how a bodybuilding lifestyle/diet may effect the reading.
I have found some studies that suggest due to how the Glomerular filtration rate is calculated automatically in the lab, use of creatine and a high protein diet can cause a miss diagnosis.
Has anyone come across anything like this with their bloodwork and/or has any insight on it?