What to feed a dog can seem to create stronger and more vociferous opinions than global political issues! Opinions vary widely and the base line as that almost any food in a shop has been approved as providing adequate nutrition -- but from there, you can go from mediocre to ultra-yuppyish, costly foods with exotic ingredients, not to mention the wars between raw feeders vs. everyone else, anti-grain people, pro-holistic foods people... dog food advocates can be like noisy religious advocates, each trying to win converts to their faith.

This is a useful link that explains one opinion on how to choose a food, how to interpret dog food labels, etc:

http://www.dogaware.com/dogfeeding.html

Another detailed site:

http://www.mordanna.com/dogfood/index.php?page=intro

This is a useful tool: a dog food ingredient comparison chart. You can compare four foods or treats at once, and click into details on each ingredient.

http://www.naturapet.com/display.php...iz&naturaid=62

What makes a good treat? Here's some do's and dont's for chewers:

http://www.mercola.com/2005/feb/19/pet_chew_treats.htm