Hi,
I was diagnosed with CKD in 2019. My GFR was 63. I did research online and found a kidney dietician posted information about a diet based on food and PRAL, predictive renal acid load. Very straight forward. It's basically food groups and which are the easiest for you kidney's to process.
For 5 years I have continued to follow the principles of the diet (I also went vegetarian), exercised more and lost 50lb. My function has continued to improved. As of July 2024 my GFR had increased to 88. I am a 67 yo woman.