Before you give your dog fish oil or any supplement, it's important to consult your veterinarian even if it's available over-the-counter. And while our picks have dosage recommendations on their ...

Fish oil is safe for all dogs, but Lascelles says too high of a dose, too quickly, can give your pup diarrhea, so introduce it to their diet slowly. It also comes with significant calories (41 ...

The best fish oil for dogs contains omega-3s to help with arthritis, joint pain, skin, and coat. Our top supplement picks ...