This link has extensive information. It is lengthy, detailed and easy to understand. Perhaps someone will find it useful. The more access we have to information, the better we can wade through industry claims and terminology. It's all about learning.
http://www.dogaware.com/dogfeeding.html#addfoo
Best Intentions,
Dorothy
http://www.dogaware.com/dogfeeding.html#addfoo
Best Intentions,
Dorothy