It's no secret that Americans love their pets. When it comes to U.S. pet ownership, 39 percent of households own at least one dog, and 33 percent own at least one cat, according to the Humane Society of the United States. Furry family members bring joy and excitement to a household, and providing the best care possible helps ensure pets have a long, healthy life. Unfortunately, with so much information available, it's easy to become confused about what's really best for them. Here's what you really need to know.