Salmon Oil for Dogs Review Conclusion. We hope that our guide has helped you decide which variety of salmon oil supplement you would like to get for your dog. As long as you take into account the size of your dog, the quantity you need, and the form of the supplement you would prefer to administer, you can choose the best type of salmon oil for For one, it has dog treats and hemp oil for your furry friends. The dog treats are made without corn and soy which is good if your pet happens to be allergic to them. They are also grain-free. The oil, on the other hand, is bacon flavored. You won’t have a hard time giving your dog his daily dose as the flavor’s quite appealing. Fish oil is derived from a diverse array of both saltwater and freshwater fish, including salmon, bluefish, menhaden, sardines, herring, tuna, anchovies, mackerel, sturgeon, trout, and cod. Veterinarians recommend fish oils for dogs because of the supplement’s proven health benefits. Fish oils for dogs can calm skin irritation and promote healthier, softer coats with more luster.