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

Dogs also should not eat fish cooked in seasonings or oil. If dogs consume too much oil, it can cause build-up in the gastrointestinal tract, according to the American Kennel Club. Certain ...

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 ...