| As GSD lover alluded to, I'm pretty sure if you ask your vet you'll find out that there is an essential amino acid required, but not present in your dog's liver to process a fish oil tablet made for humans. So even though a fish oil tablet made for dogs may say "human grade," it still has this amino acid in the tablet to aid in digestion. And if you look at a bottle of fish oil for dogs, it will probably say "not for human consumption." I would then conclude that the alternate is true for human fish oil and dogs. Hope this helps. | 
