that's not necessarily true about ALL canned foods.

True, plenty of brands such as pedigree are made of of LOW quality meats and LARGELY corn and wheat, but, there are TONS of other higher quality canned foods made with USDA approved meat and are low in carbs.

Here's some links:
http://home.comcast.net/~mstraus/dogfeeding.html
http://whole-dog-journal.com/pub/6_1...es/5590-1.html

these sites are worth a read!