I know that we've had threads on what supplements ya'll give to your dogs, but I looked and couldn't find it. So, what do you all supplement your dogs food with and where is your favorite place to get it? Hudson gets salmon oil added to his food fairly regularly. I'm on the lookout for probiotics because his belly has always been iffy, solid stool one outing and soft, liquidy the next. He does get yogurt mixed in sometimes too.