Adding dog health supplements to a dog's diet adds years to that pet's life. Finding supplements with proven results is easy if you look for products that the Association of American Feed Control Officials (AAFCO) or your veterinarian recommends. Does Your Pet Need Dietary Supplements Most dog foods provide the vitamins and minerals that your pet needs. However, many foods contain additives that dogs do not need. People turn to holistic diets, including the raw food diet, with great intentions. The problem with these diets is that dogs do not receive many vital nutrients. To fill in these gaps, pet owners provide dog health supplements. Vital Nutrients in Dog Health Supplements When you purchase a dog health supplement, you want one that contains B vitamins, folic acid, potassium, iron and Vitamin A. This will help with joint health, skin condition and energy levels. Best Supplements on the Market You will find that veterinarians helped create two of today's best health supplements for dogs. Cornell Veterinary School of Medicine's Dr. Jane Leon created Dog-Wa. Rich in nutrients from leafy green vegetables, Dog-Wa also contains mint and parsley to help freshen a dog's breath. Life's Abundance is a holistic product designed by Dr. Jane Bicks that dogs crave. The vitamins and minerals come directly from food sources such as liver, cranberries, eggs, pineapples and carrots.