@lssanso It depends also on your bloodwork, levels of potassium, calcium, phosphate, sodium, and such, but a general recommendation is the Mediterranian diet, avoid high calorie foods such as fried. I use the Renal Diet Cookbook by Susan Zogheib. Stage 3a, they mostly recommend drinking a minimum of 8 glasses of water a day; with stage 3b there can be other limitations. For example, if one has high potassium than limiting high K food such as potatoes and bananas can help lower it. Exercise is very important to chronic kidney disease, it helps with maintaining bone density, lessens fatigue (which seems counter to what one would think), and also a key part of controlling type 2 diabetes and other diseases.