I am a RN and worked with Dialysis for 2 years. I started Adkins while working with acute Dialysis patients. I asked our Nephrologist at that time if a high protein diet would harm my kidneys. He said that high protein would not harm the kidneys in a healthy person with fully functioning kidneys. Now, if you have any form of kidney disease then protein should be limited. This just stresses the importance of consulting your MD and drinking adequate water.