I absolutely agree. I had a biochem course that delved deep into kidney function, you can read all the studies you want about how high protein consumption is OK for people with healthy kidneys, but there is no doubt in my mind that dealing with nitrogenous waste is severely taxing to the kidneys. Consider also the addition stress they may be under from other sources in bodybuilders.
I'm a big fan of adjust total protein intake based on BUN levels also.
Yes it is, Shelby and I put together a lot of good info in this book, but the nutrition section is rather small. Nutrition is a subject that is way too broad for the scope of this book. Shelby does have other books that delve deeper into nutrition though, I have read them and learned from them.
kal do you have a certain range for bun you look for to tell if protein intake is too high? in my labs they have a ref range of 8-21 mg/dl for bun. my last set of labs had me at 13...so according to them im in range, therefore im guessing im not over eating on protein?