It's a matter of opinion.
Personally, I'm just afraid to do it, not trusting our food supply 100%.
There are plenty of "grain-free" kibbles and 95% real meat alternatives.
Research: Innova Evo and Innova Evo Red Meat at:
http://naturalpetmarket.com
It's a great alternative to feeding raw.
Hopefully someone who has success with a raw diet will answer you in depth.
Good Luck with whatever you decide.