How concerned should I be about having high levels of creatinine? Is it common for athletes or people who lift and train hard to have higher levels of creatinine?
My blood test results for creatinine showed 1.15 in last November and 1.3 now in this month. GFR: 75 and A/G: 1.99.
I do take creatine, eat healthy and train hard 5-6 days a week. I'm 27 yrs old, 5ft 9" and about 175 Lbs.