Wow, I'm no expert and right now my GFR is 44 which is not unusual for me. Re your doctor saying that a kidney diet does no good is very surprising to me. I always watch my salt but protein is a huge factor (I was eating way too much so I'm concerned right now). You need to know how many grams you can eat daily. Ginger helps me a lot. Do you see a Nephrologist? If not please see one. My GP never even told me that I had kidney disease. I think I had it for possibly 2 years before I found out. My best and keep posting how you are doing. : )