So, love eating primal, love how I feel, love the weight loss, etc, etc. But I am now on my third kidney stone eating this way, and the doctor has told me that I absolutely must cut way down on the amount of animal protein I consume (too many purines). Along with more water and watching out for high oxalate foods. This last kidney stone episode was the worst I've experienced by far, and I ended up having to get a lithotripsy treatment to break it up. Not fun.

Just wondering, what is Mark's response to the idea that too much animal protein can be a major contributing factor to kidney stones?