Food & NutritionWhat fish oil is best for my dog: human grade or pet formula?
I love Nordic Naturals and I always recommend using a veterinary product when available. They do tests to make sure you are giving the right amount for your dogs size. So while you can give fish oil from Costco I would stick to a veterinary formulation. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Chloe.
Updated on September 24th, 2025