I am 92 year old male and diabetic type 2 since c 2006, caring for myself. Recently discovered in a med summary that I was diagnosed CKD 4 and also was CKD 3 about two years ago without being told. What should the range of my test results be ? What do the tests' abbreviations stand for - GFR and all ? Are soya "milks" a good substitute for dairy products ? Without mentioning sodium, potassium, etc what are the most important foods to avoid and why ? And the best to go for ? Is tea damaging ? To save trouble, send www links, please ?