Most people know how they should feed themselves. A healthy human diet is balanced, low in “bad” fats, sufficient in “good” fats, high in protein, and sourced from natural ingredients. Less nutritious treats are ok every once in a while—and even an important aspect of your quality of life—but should be consumed in moderation. Many pet owners don’t apply the same logic to their pet’s diet as they do to their own, causing inadvertent harm. An astonishing 90 percent of the aliments affecting domestic cats and dogs may be related to their......