I know that the "ultra premium" is the only one on the Whole Dog Journal's list. You just want to read the ingredients of the others and make sure there is no corn and no by-products. Omega 3&6 are in Loki's Canidae but I also put Omega 3 on his food. Rather than buy the grizzly salmon oil - I just bought 350 capsules from SamsClub for $6. I cut one open and spray it on his food about every other day. It's the same stuff. |