@colleenyoung I have spoken to my doctor about it, didn't seem to concerned. My BUN levels were 13 the first lab draw, and 14 the second time.

Thanks to Colleen for thinking of me. My first response would be to discuss your concerns with your primary care physician. Of course, I would make certain that your serum Cr levels are outside of the normal range for the laboratory that performed the analysis. Review with your physician all medications, including supplements, that you are taking. There are many possible causes for chronic kidney disease (CKD) and all of them should be excluded if your physician is at all concerned. Your levels are not very high, as you know, but if subsequent follow-up reveals increasing levels, then a thorough evaluation is required. Referral to kidney specialists is not usually indicated at these low levels of creatinine, but your concern is justified if they go up. I have personal experience (and I am over 4X your age) with CKD, with levels of serum Cr around 1.6 to 1.8 over the past 5 years or so, but with no distinct upward trend. I have had ultrasound exams of the kidneys, and recently underwent cystoscopic examination. My nephrologist has been ordering tests over the past two years to exclude every possible cause of CKD, and we are left with possibly mild hypertension as a possible explanation. My BP is normal now on no medication. I have no symptoms, and the plan is to get checked annually. You have a long life ahead of you, and you are correct in wishing to protect your kidneys from damage of any kind. Only a thorough evaluation and sustained follow-up will ensure this. Good luck! One last thing: Make sure your protein intake does not exceed the recommended levels!