Too many dog owners fall victim to clever marketing schemes and catchy packaging. Little do consumers know, the dog food that claims to be “nutritional” or “healthy” could be very far from it. Several of the following dog foods have been linked to serious illness, and in some extreme cases, death. There is a huge difference between high-end dog foods and those that are second-tier. You may want to think twice about the pet that you love before grabbing for that bargain brand dog food, as the ingredients in the bag could prove wildly harmful for your canine.