This is a great poster you can download and print for your own use: found it on the Denver Dog Facebook Page. Really priceless.
Wow, is there way too much information about nutrition plastered all over the internet. Some of it good, some of it not so good. How is anyone supposed to tell the difference. Here is an excellent article that helps you sort through the hoopla.
The Saavy Dog Owner's Guide. It applies to Cat Owner's as well.