This depends on the type of diet you consistently feed your dog and the medical reasons for wanting to supplement cod liver oil. Some dogs are better off eating fish, and some are better off with supplements. tells us: “In general, if your dog is eating a healthy raw diet composed mainly of grass-fed animals, free of grains and vegetable oils, then the occasional meal of fish might be all he needs. However, if he suffers from chronic disease, stress, injury, or is growing (or if you have a pregnant dam), then fish oil supplementation might be a good idea. Whether it’s required in the long term may or may not be the case – it really would depend on your dog’s condition. For dogs eating a processed, grain-based diet, then a combination of fish and a high quality fish oil might ensure he gets the benefits of whole fish, plus the extra EPA and DHA.”
just don't season it when you cook it
Now when it comes to sources of omega 3 fatty acids, both flaxseed and fish oils, namely salmon oil, are common sources. Cod liver oil actually is lower in omega 3 fatty acids and, as viralmd and you pointed out, are high in vit A and D. Now there are three important nutritionally essential forms of omega 3 fatty acids: ALA, EPA, and DHA. Fish oils, like salmon oil, contain abundant EPA and DHA. Plant oils, like flaxseed oil on the other hand, contain predominantly ALA, which needs to be converted to EPA and DHA in the body to be of use. Recent studies demonstrate that this conversion is NOT very efficient in dogs or even humans (0.5-15%), and suggests that consuming large amounts of ALA may have limited health benefits and may even result in high amounts of omega 6 rather than omega 3. Exessively high omega 6 : omega3 ratio can promote health problems (inflammation, poor coat, allergies, skin conditions) since metabolites of omega 6 fatty acits are more inflammatory than metabolites of omega 3 fatty acids (which are largely anti-inflammatory).
Healthy Homemade Dog Food - Petcha
Omega-3 fatty acids are an important part of a dog’s diet, and whether you choose to feed your fish oil or cod liver oil, make sure that you’re giving your dog top quality and the appropriate amount. Be sensitive to your pet’s response to the oil or fish, to determine the best option for your canine. You need to be extra careful and vigilant of the amount of vitamins your dog’s diet provides before trying to administer cod liver oil.
Feeding Fish to Dogs or Cats is NOT Advisable - Mercola Healthy Pets