Type of oil

I was just wondering, what the best type of oil is to add to your dogs food?

Riot gets oil mixed into his food every morning to help with his skin and coat.

Fish oil, with vitamin E supplement.

All the products from seapet.com, and the Grizzly Salmon Oil are among the best.

That's what I give too, but I give them the human versions. I get the big bottles of capsules from Sam's club and put it in the muscle meat part of their raw food or feed it in a treat. Gunnar gets his direct, I open up his mouth and drop them down his throat, because he has to nibble every treat like it's his last, so he'll eat around the pills and leave them on the floor.