You know, I wrote to the researchers of that particular study and asked them exactly what "diet" their 10 participants ate. They response I got back was "they followed the Atkin's plan of Induction for two weeks, then they went straight to the maintenance plan for the next 4 weeks, then they ate their regular food again for the last two weeks." She said they tested they subjects urine everyday during the "research" and came to the "conclusion" that a low carb/high-protein diet was bad for the kidneys. This so-called "study" had no control subjects and was only 8 weeks in length. Any doctor who would give advise based on that kind of study is just a plain jerk.