9 Warning Signs Your Kidneys May Be Struggling — And Simple Tests Plus Everyday Foods That Could Support Kidney Health

Noticing one is useful; seeing several together is a strong reason to get tested.

Simple Medical Tests That Can Detect CKD 

Earlier
The encouraging news: basic screening can identify kidney issues before obvious symptoms develop. Consider discussing these with your clinician:

eGFR (Estimated Glomerular Filtration Rate)

Calculated from a blood creatinine test
Normal is often 90+ (varies by context)
Below 60 mL/min may indicate reduced kidney function
uACR (Urine Albumin-to-Creatinine Ratio)

Measures protein leakage into urine
Above 30 mg/g can be an early warning sign
Blood pressure