An interesting video suggesting a plant-based diet may be beneficial in the treatment of kidney disease:

http://nutritionfacts.org/video/treating-chronic-kidney-disease-with-food/?utm_content=bufferc8bce&utm_medium=social&utm_source=facebook.com&utm_campaign=buffer

I have had a basically vegetarian diet since childhood and unfortunately it didn't stop me developing kidney disease but it may well be a factor in maintaining a steady level of kidney function loss since diagnosis 7 years ago.