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

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 ...

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 ...