When I 1st started feeding Raw I made my self crazy with analyzing values of the foods I feed. It does servive a point in the quest for knowledge but, it all gets down to varity and monotoring youu own dog & lifestyle. What works for me won';t work for everyone. I've taken some good ideas from others here. The best quage is your observations of your own dog. When you do find your info, do post a thread in the BARF forum for other in the future.