I'm planning on making my own food from now on for my roach colonies, and during my research, someone sent me this: http://www.forums.repashy.com/diets-live-foods-supplements/38413-roach-revolution-revelation-theory-about-reptile-gout.html
For everyone that breed roaches, it's an eye-opening read. It certainly changed my plans on ingredients for my roach food! I'm now in the process of planning something a lot lower in protein.